diff --git a/src/cmd/mkfile b/src/cmd/mkfile
index 21070f0e..8a26fbfb 100644
--- a/src/cmd/mkfile
+++ b/src/cmd/mkfile
@@ -1,6 +1,6 @@
 <$PLAN9/src/mkhdr
 
-TARG=`ls *.[cy] | egrep -v "\.tab\.c$" | sed 's/\.[cy]//'`
+TARG=`ls *.[cy] *.lx | egrep -v "\.tab\.c$" | sed 's/\.[cy]//'`
 
 <$PLAN9/src/mkmany