diff --git a/criu/cr-restore.c b/criu/cr-restore.c
index 3a1c0cd9e..72fb55c2b 100644
--- a/criu/cr-restore.c
+++ b/criu/cr-restore.c
@@ -1233,6 +1233,9 @@ static inline int fork_with_pid(struct pstree_item *item)
 		BUG_ON(pid != INIT_PID);
 	}
 
+	if (ca.clone_flags & CLONE_FILES)
+		close_pid_proc();
+
 	/*
 	 * Some kernel modules, such as netwrok packet generator
 	 * run kernel thread upon net-namespace creattion taking