diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c8af305f..3d785d8c 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -94,7 +94,7 @@ jobs:
               OPTIMIZE=-Os
               ;;
             arm)
-              CPU="-mcpu=cortex-a7 -mthumb"
+              CPU="-mcpu=arm1176jzf-s -mthumb"
               ;;
           esac