diff --git a/gstreamer-sharp/Gstreamer.metadata b/gstreamer-sharp/Gstreamer.metadata
index 61a0d58150..0b1dd3a69a 100644
--- a/gstreamer-sharp/Gstreamer.metadata
+++ b/gstreamer-sharp/Gstreamer.metadata
@@ -1052,6 +1052,7 @@
   <attr path="/api/namespace/object[@cname='GstBaseTransform']/virtual_method[@cname='transform_caps']/return-type" name="owned">true</attr>
   <attr path="/api/namespace/object[@cname='GstBaseTransform']/virtual_method[@cname='prepare_output_buffer']/parameters/parameter[@name='buf']" name="owned">true</attr>
   <attr path="/api/namespace/object[@cname='GstBaseTransform']/virtual_method[@cname='prepare_output_buffer']/parameters/parameter[@name='buf']" name="pass_as">out</attr>
+  <attr path="/api/namespace/object[@cname='GstBaseTransform']/virtual_method[@cname='set_caps']/return-type" name="default_value">true</attr>
   <attr path="/api/namespace/object[@cname='GstBaseTransform']/method[@cname='gst_base_transform_is_qos_enabled']" name="hidden">1</attr>
   <attr path="/api/namespace/object[@cname='GstBaseTransform']/method[@cname='gst_base_transform_set_qos_enabled']" name="hidden">1</attr>
   <attr path="/api/namespace/object[@cname='GstBaseTransform']/method[@name='IsInPlace']" name="name">GetInPlace</attr>