diff --git a/share/man/man9/style.9 b/share/man/man9/style.9
index 831ea33cfe76..0b48a999cc5b 100644
--- a/share/man/man9/style.9
+++ b/share/man/man9/style.9
@@ -394,7 +394,7 @@ might not be in scope.)
 Test pointers
 against NULL, e.g., use:
 .Bd -literal -offset 0i
-(p = f()) == NULL
+(p = f()) == NULL)
 .Ed
 .Pp
 not: