diff --git a/lib/src/english/IrregEng.gf b/lib/src/english/IrregEng.gf
index 2b90da1c4..cf81b6b45 100644
--- a/lib/src/english/IrregEng.gf
+++ b/lib/src/english/IrregEng.gf
@@ -72,7 +72,7 @@ flags optimize=values ;
   keep_V = irregV "keep" "kept" "kept" ;
   kneel_V = irregV "kneel" "knelt" "knelt" ;
   knit_V = irregDuplV "knit" "knit" "knit" ;
-  know_V = irregV "know" "knew" "know" ;
+  know_V = irregV "know" "knew" "known" ;
   lay_V = irregV "lay" "laid" "laid" ;
   lead_V = irregV "lead" "led" "led" ;
   leap_V = irregV "leap" (variants {"leaped" ; "lept"}) (variants {"leaped" ; "lept"}) ;