diff --git a/ext/opcache/ZendAccelerator.c b/ext/opcache/ZendAccelerator.c
index 97b82378780b..ed0602394ce9 100644
--- a/ext/opcache/ZendAccelerator.c
+++ b/ext/opcache/ZendAccelerator.c
@@ -354,6 +354,10 @@ static inline void accel_unlock_all(void)
 #ifdef ZEND_WIN32
 	accel_deactivate_sub();
 #else
+	if (lock_file == -1) {
+		return;
+	}
+
 	struct flock mem_usage_unlock_all;
 
 	mem_usage_unlock_all.l_type = F_UNLCK;
diff --git a/ext/opcache/zend_shared_alloc.c b/ext/opcache/zend_shared_alloc.c
index afe539bf987a..37f6fea9199a 100644
--- a/ext/opcache/zend_shared_alloc.c
+++ b/ext/opcache/zend_shared_alloc.c
@@ -52,7 +52,7 @@ zend_smm_shared_globals *smm_shared_globals;
 #ifdef ZTS
 static MUTEX_T zts_lock;
 #endif
-int lock_file;
+int lock_file = -1;
 static char lockfile_name[MAXPATHLEN];
 #endif