diff --git a/src/routes/postBranding.ts b/src/routes/postBranding.ts
index e38418b..16a8f5c 100644
--- a/src/routes/postBranding.ts
+++ b/src/routes/postBranding.ts
@@ -88,7 +88,7 @@ export async function postBranding(req: Request, res: Response) {
 
                 await handleExistingVotes(BrandingType.Title, videoID, hashedUserID, UUID, hashedIP, voteType);
                 if (existingUUID) {
-                    await updateVoteTotals(BrandingType.Title, UUID, shouldLock, !!downvote);
+                    await updateVoteTotals(BrandingType.Title, UUID, hashedUserID, shouldLock, !!downvote);
                 } else {
                     if (downvote) {
                         throw new Error("Title submission doesn't exist");
@@ -134,7 +134,7 @@ export async function postBranding(req: Request, res: Response) {
 
                 await handleExistingVotes(BrandingType.Thumbnail, videoID, hashedUserID, UUID, hashedIP, voteType);
                 if (existingUUID) {
-                    await updateVoteTotals(BrandingType.Thumbnail, UUID, shouldLock, !!downvote);
+                    await updateVoteTotals(BrandingType.Thumbnail, UUID, hashedUserID, shouldLock, !!downvote);
                 } else {
                     if (downvote) {
                         throw new Error("Thumbnail submission doesn't exist");
@@ -185,7 +185,9 @@ export async function postBranding(req: Request, res: Response) {
 async function handleExistingVotes(type: BrandingType, videoID: VideoID,
     hashedUserID: HashedUserID, UUID: BrandingUUID, hashedIP: HashedIP, voteType: BrandingVoteType) {
     const table = type === BrandingType.Title ? `"titleVotes"` : `"thumbnailVotes"`;
+    const table2 = type === BrandingType.Title ? `"titles"` : `"thumbnails"`;
 
+    const isUsersSubmission = (await db.prepare("get", `SELECT "userID" FROM ${table2} WHERE "UUID" = ?`, [UUID]))?.userID === hashedUserID;
     const idsDealtWith: BrandingUUID[] = [];
 
     // Either votes of the same type, or on the same submission (undo a downvote)
@@ -204,15 +206,33 @@ async function handleExistingVotes(type: BrandingType, videoID: VideoID,
 
                         await privateDB.prepare("run", `DELETE FROM ${table} WHERE "id" = ?`, [existingVote.id]);
                         break;
-                    case BrandingVoteType.Downvote:
+                    case BrandingVoteType.Downvote: {
                         // Undoing a downvote now that it is being upvoted
-                        await db.prepare("run", `UPDATE ${table} SET "downvotes" = "downvotes" - 1 WHERE "UUID" = ?`, [existingVote.UUID]);
+
+                        // Only undo downvote if it is not their submission
+                        if (!isUsersSubmission) {
+                            await db.prepare("run", `UPDATE ${table} SET "downvotes" = "downvotes" - 1 WHERE "UUID" = ?`, [existingVote.UUID]);
+                        }
+
                         await privateDB.prepare("run", `DELETE FROM ${table} WHERE "id" = ?`, [existingVote.id]);
                         break;
+                    }
+                }
+            }
+        } else if (isUsersSubmission) {
+            // Treat like upvoting another submission (undoing upvote)
+            let dealtWith = false;
+            for (const existingVote of existingVotes) {
+                if (existingVote.type === BrandingVoteType.Upvote && existingVote.UUID === UUID) {
+                    if (!dealtWith) {
+                        dealtWith = true;
+                        await db.prepare("run", `UPDATE ${table} SET "votes" = "votes" - 1 WHERE "UUID" = ?`, [UUID]);
+                    }
+
+                    await privateDB.prepare("run", `DELETE FROM ${table} WHERE "id" = ?`, [existingVote.id]);
                 }
             }
         }
-
     }
 
     await privateDB.prepare("run", `INSERT INTO ${table} ("videoID", "UUID", "userID", "hashedIP", "type") VALUES (?, ?, ?, ?, ?)`,
@@ -223,11 +243,16 @@ async function handleExistingVotes(type: BrandingType, videoID: VideoID,
  * Only called if an existing vote exists.
  * Will update public vote totals and locked status.
  */
-async function updateVoteTotals(type: BrandingType, UUID: BrandingUUID, shouldLock: boolean, downvote: boolean): Promise<void> {
+async function updateVoteTotals(type: BrandingType, UUID: BrandingUUID, userID: HashedUserID, shouldLock: boolean, downvote: boolean): Promise<void> {
     const table = type === BrandingType.Title ? `"titleVotes"` : `"thumbnailVotes"`;
+    const table2 = type === BrandingType.Title ? `"titles"` : `"thumbnails"`;
 
     if (downvote) {
-        await db.prepare("run", `UPDATE ${table} SET "downvotes" = "downvotes" + 1 WHERE "UUID" = ?`, [UUID]);
+        // Only downvote if it is not their submission
+        const isUsersSubmission = (await db.prepare("get", `SELECT "userID" FROM ${table2} WHERE "UUID" = ?`, [UUID]))?.userID === userID;
+        if (!isUsersSubmission) {
+            await db.prepare("run", `UPDATE ${table} SET "downvotes" = "downvotes" + 1 WHERE "UUID" = ?`, [UUID]);
+        }
     } else {
         await db.prepare("run", `UPDATE ${table} SET "votes" = "votes" + 1 WHERE "UUID" = ?`, [UUID]);
     }
diff --git a/test/cases/postBranding.ts b/test/cases/postBranding.ts
index f4d606d..d2afcd2 100644
--- a/test/cases/postBranding.ts
+++ b/test/cases/postBranding.ts
@@ -317,6 +317,51 @@ describe("postBranding", () => {
         }
     });
 
+    it("Downvote your own title and thumbnail", async () => {
+        const videoID = "postBrand5";
+        const title = {
+            title: "Some other title",
+            original: false
+        };
+        const thumbnail = {
+            timestamp: 13.42,
+            original: false
+        };
+
+        const res = await postBranding({
+            title,
+            thumbnail,
+            userID: userID4,
+            service: Service.YouTube,
+            videoID,
+            downvote: true
+        });
+
+        assert.strictEqual(res.status, 200);
+        const dbTitles = await queryTitleByVideo(videoID, true);
+        for (const dbTitle of dbTitles) {
+            if (dbTitle.title === title.title) {
+                const dbTitleVotes = await queryTitleVotesByUUID(dbTitle.UUID);
+                assert.strictEqual(dbTitleVotes.votes, -1);
+                assert.strictEqual(dbTitleVotes.downvotes, 1);
+                assert.strictEqual(dbTitleVotes.locked, 0);
+                assert.strictEqual(dbTitleVotes.shadowHidden, 0);
+            }
+        }
+
+        const dbThumbnails = await queryThumbnailByVideo(videoID, true);
+        for (const dbThumbnail of dbThumbnails) {
+            if (dbThumbnail.timestamp === thumbnail.timestamp) {
+                const dbThumbnailVotes = await queryThumbnailVotesByUUID(dbThumbnail.UUID);
+
+                assert.strictEqual(dbThumbnailVotes.votes, -1);
+                assert.strictEqual(dbThumbnailVotes.downvotes, 1);
+                assert.strictEqual(dbThumbnailVotes.locked, 0);
+                assert.strictEqual(dbThumbnailVotes.shadowHidden, 0);
+            }
+        }
+    });
+
     it("Downvote another title and thumbnail", async () => {
         const videoID = "postBrand5";
         const title = {
@@ -340,21 +385,25 @@ describe("postBranding", () => {
         assert.strictEqual(res.status, 200);
         const dbTitles = await queryTitleByVideo(videoID, true);
         for (const dbTitle of dbTitles) {
-            const dbTitleVotes = await queryTitleVotesByUUID(dbTitle.UUID);
-            assert.strictEqual(dbTitleVotes.votes, 0);
-            assert.strictEqual(dbTitleVotes.downvotes, 1);
-            assert.strictEqual(dbTitleVotes.locked, 0);
-            assert.strictEqual(dbTitleVotes.shadowHidden, 0);
+            if (dbTitle.title === title.title) {
+                const dbTitleVotes = await queryTitleVotesByUUID(dbTitle.UUID);
+                assert.strictEqual(dbTitleVotes.votes, 0);
+                assert.strictEqual(dbTitleVotes.downvotes, 1);
+                assert.strictEqual(dbTitleVotes.locked, 0);
+                assert.strictEqual(dbTitleVotes.shadowHidden, 0);
+            }
         }
 
         const dbThumbnails = await queryThumbnailByVideo(videoID, true);
         for (const dbThumbnail of dbThumbnails) {
             const dbThumbnailVotes = await queryThumbnailVotesByUUID(dbThumbnail.UUID);
 
-            assert.strictEqual(dbThumbnailVotes.votes, 0);
-            assert.strictEqual(dbThumbnailVotes.downvotes, 1);
-            assert.strictEqual(dbThumbnailVotes.locked, 0);
-            assert.strictEqual(dbThumbnailVotes.shadowHidden, 0);
+            if (dbThumbnail.timestamp === thumbnail.timestamp) {
+                assert.strictEqual(dbThumbnailVotes.votes, 0);
+                assert.strictEqual(dbThumbnailVotes.downvotes, 1);
+                assert.strictEqual(dbThumbnailVotes.locked, 0);
+                assert.strictEqual(dbThumbnailVotes.shadowHidden, 0);
+            }
         }
     });
 
@@ -427,7 +476,7 @@ describe("postBranding", () => {
         for (const dbTitle of dbTitles) {
             if (dbTitle.title === title.title) {
                 const dbTitleVotes = await queryTitleVotesByUUID(dbTitle.UUID);
-                assert.strictEqual(dbTitleVotes.votes, 1);
+                assert.strictEqual(dbTitleVotes.votes, 0);
                 assert.strictEqual(dbTitleVotes.downvotes, 0);
                 assert.strictEqual(dbTitleVotes.locked, 0);
                 assert.strictEqual(dbTitleVotes.shadowHidden, 0);
@@ -439,7 +488,7 @@ describe("postBranding", () => {
             if (dbThumbnail.timestamp === thumbnail.timestamp) {
                 const dbThumbnailVotes = await queryThumbnailVotesByUUID(dbThumbnail.UUID);
 
-                assert.strictEqual(dbThumbnailVotes.votes, 1);
+                assert.strictEqual(dbThumbnailVotes.votes, 0);
                 assert.strictEqual(dbThumbnailVotes.downvotes, 0);
                 assert.strictEqual(dbThumbnailVotes.locked, 0);
                 assert.strictEqual(dbThumbnailVotes.shadowHidden, 0);