diff --git a/man2/sigprocmask.2 b/man2/sigprocmask.2
index 524f3d37b..e0b4a7b9a 100644
--- a/man2/sigprocmask.2
+++ b/man2/sigprocmask.2
@@ -82,7 +82,7 @@ is NULL, then the signal mask is unchanged (i.e.,
 is ignored),
 but the current value of the signal mask is nevertheless returned in
 .I oldset
-(it is not NULL).
+(if it is not NULL).
 
 The use of
 .BR sigprocmask ()