diff --git a/man2/sigaltstack.2 b/man2/sigaltstack.2
index 69b663a4a..fb58593fd 100644
--- a/man2/sigaltstack.2
+++ b/man2/sigaltstack.2
@@ -148,7 +148,7 @@ a nonzero value other than
 .B ENOMEM
 The specified size of the new alternate signal stack
 .I ss.ss_size
-as less than
+was less than
 .BR MINSTKSZ .
 .TP
 .B EPERM