diff --git a/subprojects/gst-plugins-bad/docs/plugins/gst_plugins_cache.json b/subprojects/gst-plugins-bad/docs/plugins/gst_plugins_cache.json
index 1d1e65e9c8..ac37f059ff 100644
--- a/subprojects/gst-plugins-bad/docs/plugins/gst_plugins_cache.json
+++ b/subprojects/gst-plugins-bad/docs/plugins/gst_plugins_cache.json
@@ -3941,7 +3941,7 @@
                 "long-name": "VP9 Alpha Decoder",
                 "pad-templates": {
                     "sink": {
-                        "caps": "video/x-vp9:\n    codec-alpha: true\n",
+                        "caps": "video/x-vp9:\n    codec-alpha: true\n      alignment: super-frame\n",
                         "direction": "sink",
                         "presence": "always"
                     },