diff --git a/src/nynorsk/LangNno.gf b/src/nynorsk/LangNno.gf
index e8184a2dd..919fd8945 100644
--- a/src/nynorsk/LangNno.gf
+++ b/src/nynorsk/LangNno.gf
@@ -3,6 +3,7 @@
 concrete LangNno of Lang =
   GrammarNno,
   LexiconNno
+  ,ConstructionNno
   ,DocumentationNno --# notpresent
   ** {