diff --git a/Makefile b/Makefile
index 217bea0..fa390d7 100644
--- a/Makefile
+++ b/Makefile
@@ -30,7 +30,7 @@ $(BUILDDIR)/%: %
 
 $(BUILDDIR)/%.gif: %_bg.gif
 	@echo $(notdir $@)
-	@mkdir -p $(dir $(BUILDDIR)/%* $(TMPDIR)/%*)
+	@mkdir -p $(dir $(BUILDDIR)/$* $(TMPDIR)/$*)
 	@gifsicle -U $*_bg.gif -o $(TMPDIR)/$*_bg_u.gif
 	@convert -transparent '#ff9bc7' $(TMPDIR)/$*_bg_u.gif $(TMPDIR)/$*_t.gif
 	@gifsicle --disposal=previous $(TMPDIR)/$*_t.gif -o $(BUILDDIR)/$*.gif