diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 083dd1fa..b808f8a9 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -35,7 +35,7 @@ jobs:
             do
               OVERLAY_NAME="$(basename "$i")"
               OVERLAY_NAME="${OVERLAY_NAME/.dts}.dtbo"
-              if ! grep "$OVERLAY_NAME" "${OVERLAY_PATH}/Makefile" >/dev/null 2>/dev/null
+              if ! grep "$OVERLAY_NAME" "${OVERLAY_PATH}/Makefile" >/dev/null 2>/dev/null && ! grep "$OVERLAY_NAME" "${OVERLAY_PATH}"/*.mak >/dev/null 2>/dev/null;
               then
                 echo "$OVERLAY_NAME is not included in $VENDOR Makefile!"
                 MISSING=1