diff --git a/Instance/Shared/bundle.make b/Instance/Shared/bundle.make
index 75ba5e62..a65ab310 100644
--- a/Instance/Shared/bundle.make
+++ b/Instance/Shared/bundle.make
@@ -1,4 +1,4 @@
-#
+#   -*-makefile-*-
 #   Shared/bundle.make
 #
 #   Makefile fragment with rules to copy resource files