diff --git a/Makefile b/Makefile
index 2b52445..28afada 100644
--- a/Makefile
+++ b/Makefile
@@ -56,7 +56,7 @@ $(MAKEPAGES): make-pages/*.hs make-pages/make-pages.cabal
 	  -exec cp {} $@ \;
 
 
-$(TMPDIR)/index.mk: $(DATADIR)/index.yaml $(DATADIR) $(MAKEPAGES)
+$(TMPDIR)/index.mk: $(DATADIR)/index.yaml $(YAMLS) $(MAKEPAGES)
 	echo "[deps]    "$@
 	mkdir -p $(dir $@)
 	$(MAKEPAGES) $(MPFLAGS) depend-gallery $< -o $@ \