diff --git a/source/locking/locking.c b/source/locking/locking.c
index b71b7755248..84c9c442b5a 100644
--- a/source/locking/locking.c
+++ b/source/locking/locking.c
@@ -285,6 +285,7 @@ BOOL modify_share_mode(int token, files_struct *fsp, int new_mode)
 
 int share_mode_forall(void (*fn)(share_mode_entry *, char *))
 {
+	if (!share_ops) return 0;
 	return share_ops->forall(fn);
 }