diff --git a/www/GNUmakefile.in b/www/GNUmakefile.in
index 232e6628f13c776af2740ef5de4f457c624f7a55..35ec6c410878bff2d2a862801869183179fdf922 100644
--- a/www/GNUmakefile.in
+++ b/www/GNUmakefile.in
@@ -88,4 +88,4 @@ install: $(addprefix $(INSTALL_WWWDIR)/, $(ALLFILES)) \
 $(INSTALL_WWWDIR)/%: %
 	@echo "Installing $<"
 	-mkdir -p $(patsubst %/,%,$(dir $@))
-	$(INSTALL_DATA) $< $@
+	$(INSTALL_DATA) $(subst $$,\$$,$<) $(subst $$,\$$,$@)