diff --git a/include/image.mk b/include/image.mk
index bdcf20d30c7..9e4e9995816 100644
--- a/include/image.mk
+++ b/include/image.mk
@@ -756,6 +756,7 @@ define BuildImage
 
   else
     image_prepare:
+		rm -rf $(KDIR)/tmp
 		mkdir -p $(BIN_DIR) $(KDIR)/tmp
   endif