diff --git a/meta/core.json b/meta/core.json
index 0a1fc68a..b28fc990 100644
--- a/meta/core.json
+++ b/meta/core.json
@@ -13,7 +13,7 @@
             "type": "string",
             "format": "uri-reference",
             "$comment": "Non-empty fragments not allowed.",
-            "pattern": "^[^#]#?$"
+            "pattern": "^[^#]*#?$"
         },
         "$schema": {
             "type": "string",