diff --git a/lib/src/slovenian/AdjectiveSlv.gf b/lib/src/slovenian/AdjectiveSlv.gf
index 1a379c669..966ed3e3b 100644
--- a/lib/src/slovenian/AdjectiveSlv.gf
+++ b/lib/src/slovenian/AdjectiveSlv.gf
@@ -10,4 +10,5 @@ concrete AdjectiveSlv of Adjective = CatSlv ** open ResSlv in {
         }
       } ;
 
+    AdvAP ap adv = {s = \\spec,g,c,n => ap.s ! spec ! g ! c ! n ++ adv.s} ;
 }