diff --git a/src/bin/psql/describe.c b/src/bin/psql/describe.c
index 774cc764ff..161db48f2c 100644
--- a/src/bin/psql/describe.c
+++ b/src/bin/psql/describe.c
@@ -2388,6 +2388,8 @@ describeOneTableDetails(const char *schemaname,
 						}
 
 						/* Everything after "USING" is echoed verbatim */
+						// TODO: Show WITHOUT OVERLAPS info here?
+						// It is not really part of the *index*.
 						indexdef = PQgetvalue(result, i, 5);
 						usingpos = strstr(indexdef, " USING ");
 						if (usingpos)