diff --git a/lib/resource-1.0/abstract/Lang.gf b/lib/resource-1.0/abstract/Lang.gf
index 1c70f80a8..978d970ad 100644
--- a/lib/resource-1.0/abstract/Lang.gf
+++ b/lib/resource-1.0/abstract/Lang.gf
@@ -8,4 +8,6 @@
 abstract Lang = 
   Grammar,
   Lexicon
-  ** {} ;
+  ** {
+  flags startcat=Phr ;
+  } ;