diff --git a/man7/credentials.7 b/man7/credentials.7
index 0d6ebb24f..688d618d9 100644
--- a/man7/credentials.7
+++ b/man7/credentials.7
@@ -307,6 +307,7 @@ for further details.
 .SH SEE ALSO
 .BR bash (1),
 .BR csh (1),
+.BR groups (1),
 .BR id (1),
 .BR ps (1),
 .BR sg (1),