diff --git a/gstreamer-app/Gir.toml b/gstreamer-app/Gir.toml
index 0d0323fbb..dac2e138b 100644
--- a/gstreamer-app/Gir.toml
+++ b/gstreamer-app/Gir.toml
@@ -16,6 +16,7 @@ external_libraries = [
 ]
 
 generate = [
+    "GstApp.AppLeakyType",
     "GstApp.AppStreamType",
 ]