diff --git a/lib/resource/finnish/ExtraFin.gf b/lib/resource/finnish/ExtraFin.gf
index 104b1bde0..299535d2e 100644
--- a/lib/resource/finnish/ExtraFin.gf
+++ b/lib/resource/finnish/ExtraFin.gf
@@ -58,7 +58,7 @@ concrete ExtraFin of ExtraFinAbs = CatFin **
 
     PartCN cn = 
       let 
-        acn = DetCN (DetSg IndefArt NoOrd) cn
+        acn = DetCN (DetArtSg IndefArt) cn
       in {
         s = table {
           NPCase Nom | NPAcc => acn.s ! NPCase Part ;