diff --git a/src/plugins/php/weechat-php.c b/src/plugins/php/weechat-php.c
index d303367a6..942bac425 100644
--- a/src/plugins/php/weechat-php.c
+++ b/src/plugins/php/weechat-php.c
@@ -700,7 +700,11 @@ weechat_php_load (const char *filename, const char *code)
 
     memset (&file_handle, 0, sizeof (file_handle));
     file_handle.type = ZEND_HANDLE_FILENAME;
+#if PHP_VERSION_ID >= 80100
     file_handle.filename = zend_string_init(filename, strlen(filename), 0);
+#else
+    file_handle.filename = filename;
+#endif
 
     zend_try
     {