diff --git a/package/pkg-generic.mk b/package/pkg-generic.mk
index 260f37425e..5116ed9fea 100644
--- a/package/pkg-generic.mk
+++ b/package/pkg-generic.mk
@@ -653,9 +653,16 @@ $$(foreach pkg,$$($(2)_PROVIDES),\
 endif
 
 TARGETS += $(1)
+
+ifneq ($$($(2)_PERMISSIONS),)
 PACKAGES_PERMISSIONS_TABLE += $$($(2)_PERMISSIONS)$$(sep)
+endif
+ifneq ($$($(2)_DEVICES),)
 PACKAGES_DEVICES_TABLE += $$($(2)_DEVICES)$$(sep)
+endif
+ifneq ($$($(2)_USERS),)
 PACKAGES_USERS += $$($(2)_USERS)$$(sep)
+endif
 
 ifeq ($$($(2)_SITE_METHOD),svn)
 DL_TOOLS_DEPENDENCIES += svn