diff --git a/subprojects/gst-plugins-base/docs/plugins/gst_plugins_cache.json b/subprojects/gst-plugins-base/docs/plugins/gst_plugins_cache.json
index 3f2904c9c5..75993c4765 100644
--- a/subprojects/gst-plugins-base/docs/plugins/gst_plugins_cache.json
+++ b/subprojects/gst-plugins-base/docs/plugins/gst_plugins_cache.json
@@ -10014,6 +10014,7 @@
                         "construct": false,
                         "construct-only": false,
                         "controllable": false,
+                        "default": "EMPTY",
                         "mutable": "null",
                         "readable": true,
                         "type": "GstCaps",
@@ -10295,6 +10296,7 @@
                         "construct": false,
                         "construct-only": false,
                         "controllable": false,
+                        "default": "EMPTY",
                         "mutable": "null",
                         "readable": true,
                         "type": "GstCaps",