diff --git a/gstreamer-allocators/src/lib.rs b/gstreamer-allocators/src/lib.rs
index 691a85265..e735ddd4f 100644
--- a/gstreamer-allocators/src/lib.rs
+++ b/gstreamer-allocators/src/lib.rs
@@ -52,3 +52,5 @@ pub mod prelude {
     #[doc(hidden)]
     pub use gst::prelude::*;
 }
+
+pub mod subclass;
diff --git a/gstreamer-allocators/src/subclass/dma_buf_allocator.rs b/gstreamer-allocators/src/subclass/dma_buf_allocator.rs
new file mode 100644
index 000000000..e288026e3
--- /dev/null
+++ b/gstreamer-allocators/src/subclass/dma_buf_allocator.rs
@@ -0,0 +1,6 @@
+use glib::subclass::prelude::*;
+
+use crate::{subclass::fd_allocator::FdAllocatorImpl, DmaBufAllocator};
+
+pub trait DmaBufAllocatorImpl: FdAllocatorImpl {}
+unsafe impl<T: DmaBufAllocatorImpl> IsSubclassable<T> for DmaBufAllocator {}
diff --git a/gstreamer-allocators/src/subclass/fd_allocator.rs b/gstreamer-allocators/src/subclass/fd_allocator.rs
new file mode 100644
index 000000000..82f45c4bb
--- /dev/null
+++ b/gstreamer-allocators/src/subclass/fd_allocator.rs
@@ -0,0 +1,7 @@
+use glib::subclass::prelude::*;
+
+use crate::FdAllocator;
+use gst::subclass::prelude::AllocatorImpl;
+
+pub trait FdAllocatorImpl: AllocatorImpl {}
+unsafe impl<T: FdAllocatorImpl> IsSubclassable<T> for FdAllocator {}
diff --git a/gstreamer-allocators/src/subclass/mod.rs b/gstreamer-allocators/src/subclass/mod.rs
new file mode 100644
index 000000000..1f16b3d41
--- /dev/null
+++ b/gstreamer-allocators/src/subclass/mod.rs
@@ -0,0 +1,14 @@
+#[cfg(any(target_os = "linux", feature = "dox"))]
+#[cfg_attr(feature = "dox", doc(cfg(target_os = "linux")))]
+mod dma_buf_allocator;
+mod fd_allocator;
+
+pub mod prelude {
+    #[doc(hidden)]
+    pub use gst::subclass::prelude::*;
+
+    #[cfg(any(target_os = "linux", feature = "dox"))]
+    #[cfg_attr(feature = "dox", doc(cfg(target_os = "linux")))]
+    pub use super::dma_buf_allocator::DmaBufAllocatorImpl;
+    pub use super::fd_allocator::FdAllocatorImpl;
+}