diff --git a/man2/setgid.2 b/man2/setgid.2
index 12bbc659b..1f7875d3b 100644
--- a/man2/setgid.2
+++ b/man2/setgid.2
@@ -67,7 +67,7 @@ is not valid in this user namespace.
 .TP
 .B EPERM
 The calling process is not privileged (does not have the
-\fBCAP_SETGID\fP capability), and
+\fBCAP_SETGID\fP capability in its user namespace), and
 .I gid
 does not match the real group ID or saved set-group-ID of
 the calling process.