diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 076df17..55aef20 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -106,7 +106,7 @@ jobs:
               OPTIMIZE=-Os
               ;;
             arm)
-              CPU="-mcpu=cortex-a7 -mthumb"
+              CPU="-mcpu=arm1176jzf-s -mthumb"
               ;;
             arm64|mips64)
               # not safe without GC64