diff --git a/ext/standard/filestat.c b/ext/standard/filestat.c
index 2aa7051a2cb..3e9f8b735ed 100644
--- a/ext/standard/filestat.c
+++ b/ext/standard/filestat.c
@@ -107,9 +107,11 @@ PHP_RSHUTDOWN_FUNCTION(filestat)
 {
 	if (BG(CurrentStatFile)) {
 		efree (BG(CurrentStatFile));
+		BG(CurrentStatFile) = NULL;
 	}
 	if (BG(CurrentLStatFile)) {
 		efree (BG(CurrentLStatFile));
+		BG(CurrentLStatFile) = NULL;
 	}
 	return SUCCESS;
 }