diff --git a/usr.bin/lex/lex.1 b/usr.bin/lex/lex.1
index 38eecf1126da..c47fbb053067 100644
--- a/usr.bin/lex/lex.1
+++ b/usr.bin/lex/lex.1
@@ -2247,8 +2247,7 @@ automatically anyway.
 .TP
 .B \-F
 specifies that the
-.ul
-fast
+.I fast
 scanner table representation should be used (and stdio
 bypassed).  This representation is
 about as fast as the full table representation