diff --git a/make/projects-dir.mk b/make/projects-dir.mk
index cb915dac..3c623e8e 100644
--- a/make/projects-dir.mk
+++ b/make/projects-dir.mk
@@ -26,7 +26,7 @@ ifneq ($(wildcard projects.txt),)
   # TODO: this could be nicer
   CVS_PROJECTS = $(PROJECTS)
 else
-  PROJECTS ?= $(shell ls -d */CVS */.git 2>/dev/null | sed 's%/[^/]*%%')
+  PROJECTS ?= $(shell ls -d */Makefile 2>/dev/null | sed 's%/[^/]*%%')
   CVS_PROJECTS = $(filter $(dir $(wildcard */CVS)),$(PROJECTS))
 endif