diff --git a/SB.js b/SB.js
index 69f95d31..4b7f9330 100644
--- a/SB.js
+++ b/SB.js
@@ -65,7 +65,10 @@ class MapIO {
     }
 
     clear(key) {
-        return this.map.clear();
+        this.map.clear();
+	chrome.storage.sync.set({
+            [this.id]: encodeStoredItem(this.map)
+        });
     }
 }