diff --git a/lib/src/spanish/NumeralSpa.gf b/lib/src/spanish/NumeralSpa.gf
index b555ec3bf..fea62d408 100644
--- a/lib/src/spanish/NumeralSpa.gf
+++ b/lib/src/spanish/NumeralSpa.gf
@@ -1,4 +1,4 @@
-concrete NumeralSpa of Numeral = CatSpa ** 
+concrete NumeralSpa of Numeral = CatSpa [Numeral,Digits] ** 
   open CommonRomance, ResRomance, MorphoSpa, Prelude in {
 
 lincat