diff --git a/docs/plugins/gst_plugins_cache.json b/docs/plugins/gst_plugins_cache.json
index cfdf391552..3c456322e7 100644
--- a/docs/plugins/gst_plugins_cache.json
+++ b/docs/plugins/gst_plugins_cache.json
@@ -234436,6 +234436,7 @@
                 ]
             },
             "GstX265Tune": {
+                "ignore-enum-members": true,
                 "kind": "enum",
                 "values": [
                     {
diff --git a/ext/x265/gstx265enc.c b/ext/x265/gstx265enc.c
index 60496e3347..fb7771c21f 100644
--- a/ext/x265/gstx265enc.c
+++ b/ext/x265/gstx265enc.c
@@ -545,7 +545,8 @@ gst_x265_enc_class_init (GstX265EncClass * klass)
 
   gst_type_mark_as_plugin_api (GST_X265_ENC_LOG_LEVEL_TYPE, 0);
   gst_type_mark_as_plugin_api (GST_X265_ENC_SPEED_PRESET_TYPE, 0);
-  gst_type_mark_as_plugin_api (GST_X265_ENC_TUNE_TYPE, 0);
+  gst_type_mark_as_plugin_api (GST_X265_ENC_TUNE_TYPE,
+      GST_PLUGIN_API_FLAG_IGNORE_ENUM_MEMBERS);
 }
 
 /* initialize the new element