diff --git a/gstreamer/src/subclass/mod.rs b/gstreamer/src/subclass/mod.rs
index 0b8b7305c..58376727c 100644
--- a/gstreamer/src/subclass/mod.rs
+++ b/gstreamer/src/subclass/mod.rs
@@ -32,6 +32,7 @@ pub mod device;
 pub mod device_provider;
 
 pub mod clock;
+pub mod system_clock;
 
 pub mod preset;
 pub mod tag_setter;
@@ -50,6 +51,7 @@ pub mod prelude {
     pub use super::pad::{PadImpl, PadImplExt};
     pub use super::pipeline::PipelineImpl;
     pub use super::preset::PresetImpl;
+    pub use super::system_clock::SystemClockImpl;
     pub use super::tag_setter::TagSetterImpl;
     pub use super::uri_handler::URIHandlerImpl;
     pub use super::PanicPoison;
diff --git a/gstreamer/src/subclass/system_clock.rs b/gstreamer/src/subclass/system_clock.rs
new file mode 100644
index 000000000..557d68892
--- /dev/null
+++ b/gstreamer/src/subclass/system_clock.rs
@@ -0,0 +1,26 @@
+// Copyright (C) 2019 Sebastian Dröge <sebastian@centricular.com>
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use gst_sys;
+
+use super::prelude::*;
+use glib::subclass::prelude::*;
+
+use SystemClockClass;
+
+pub trait SystemClockImpl: ClockImpl + Send + Sync + 'static {}
+
+unsafe impl<T: ObjectSubclass + SystemClockImpl> IsSubclassable<T> for SystemClockClass {
+    fn override_vfuncs(&mut self) {
+        <::ClockClass as IsSubclassable<T>>::override_vfuncs(self);
+        unsafe {
+            let _klass = &mut *(self as *mut Self as *mut gst_sys::GstSystemClockClass);
+            // Nothing to do here
+        }
+    }
+}