diff --git a/build/os-compat/run-compat.sh b/build/os-compat/run-compat.sh
index ffc21eae9..4ec3d8da5 100755
--- a/build/os-compat/run-compat.sh
+++ b/build/os-compat/run-compat.sh
@@ -10,15 +10,13 @@ rel_pwd="${pwd#"$(pwd)"}"
 
 COMPAT_ARCH=$(uname -m)
 
+platform=linux/$COMPAT_ARCH
+
 case $COMPAT_ARCH in
     x86_64)
         platform=linux/amd64;;
-    aarch64|arm64)
+    aarch64)
         platform=linux/arm64;;
-    *)
-        echo "Unsupported architecture: $COMPAT_ARCH" >&2
-        exit 1
-        ;;
 esac
 
 if [ "$FORCE_COMPAT" = 1 ] || ( [ "$REQUIRES" = "linux" ] && [ "$(uname -s)" != "Linux" ] ) || ( [ "$REQUIRES" = "debian" ] && ! which dpkg > /dev/null ); then