diff --git a/usr.bin/expand/expand.1 b/usr.bin/expand/expand.1
index 2a5cb91c92c6..c9c687be8b95 100644
--- a/usr.bin/expand/expand.1
+++ b/usr.bin/expand/expand.1
@@ -81,7 +81,7 @@ If the
 .Fl a
 option is given, then tabs are inserted whenever they would compress the
 resultant file by replacing two or more characters.
-.It Fl t Sm Ar tab1 , tab2 , ... , tabn Sm
+.It Fl t \&Sm Ar tab1 , tab2 , ... , tabn \&Sm
 Set tab stops at column positions
 .Ar tab1 , tab2 , ... , tabn .
 If only a single number is given, tab stops are set that number of