diff --git a/main/utils.c b/main/utils.c
index 5d64661750cd0f25137e87b77abe10f64d7af07a..949ed10d1e264e80a845e0b4d26ed59e934d1b63 100644
--- a/main/utils.c
+++ b/main/utils.c
@@ -756,6 +756,10 @@ static char *handle_show_locks(struct ast_cli_entry *e, int cmd, struct ast_cli_
 			if (!lock_info->locks[i].pending)
 				continue;
 
+			/* We only have further details for mutexes right now */
+			if (lock_info->locks[i].type != AST_MUTEX)
+				continue;
+
 			lock = lock_info->locks[i].lock_addr;
 
 			ast_reentrancy_lock(lock);