diff --git a/gstreamer-app/src/app_sink.rs b/gstreamer-app/src/app_sink.rs
index 275f66ac0..1239f4110 100644
--- a/gstreamer-app/src/app_sink.rs
+++ b/gstreamer-app/src/app_sink.rs
@@ -79,7 +79,7 @@ unsafe extern "C" fn trampoline_new_sample(
 
 unsafe extern "C" fn destroy_callbacks(ptr: gpointer) {
     let _guard = CallbackGuard::new();
-    Box::<Box<AppSinkCallbacks>>::from_raw(ptr as *mut _);
+    Box::<AppSinkCallbacks>::from_raw(ptr as *mut _);
 }
 
 impl AppSink {
diff --git a/gstreamer-app/src/app_src.rs b/gstreamer-app/src/app_src.rs
index 9d23afa57..c04e0a9f7 100644
--- a/gstreamer-app/src/app_src.rs
+++ b/gstreamer-app/src/app_src.rs
@@ -80,7 +80,7 @@ unsafe extern "C" fn trampoline_seek_data(
 
 unsafe extern "C" fn destroy_callbacks(ptr: gpointer) {
     let _guard = CallbackGuard::new();
-    Box::<Box<AppSrcCallbacks>>::from_raw(ptr as *mut _);
+    Box::<AppSrcCallbacks>::from_raw(ptr as *mut _);
 }
 
 impl AppSrc {