diff --git a/conf/layer.conf b/conf/layer.conf
index b446ef0..bec624e 100644
--- a/conf/layer.conf
+++ b/conf/layer.conf
@@ -5,6 +5,6 @@
             ${LAYERDIR}/recipes-*/*/*.bbappend"
 
 BBFILE_COLLECTIONS += "google-layer"
-BBFILE_PATTERN_google-layer = ""
+BBFILE_PATTERN_google-layer := "^${LAYERDIR}/"
 LAYERVERSION_google-layer = "1"
 LAYERSERIES_COMPAT_google-layer = "thud warrior"