diff --git a/src/wayland/server/buffer_interface.cpp b/src/wayland/server/buffer_interface.cpp
index 977edbc03f..4e0b33a3be 100644
--- a/src/wayland/server/buffer_interface.cpp
+++ b/src/wayland/server/buffer_interface.cpp
@@ -314,6 +314,16 @@ wl_resource *BufferInterface::resource() const
     return d->buffer;
 }
 
+int BufferInterface::width() const
+{
+    return d->size.width();
+}
+
+int BufferInterface::height() const
+{
+    return d->size.height();
+}
+
 QSize BufferInterface::size() const
 {
     return d->size;
diff --git a/src/wayland/server/buffer_interface.h b/src/wayland/server/buffer_interface.h
index c3b95c6881..1be5bab74d 100644
--- a/src/wayland/server/buffer_interface.h
+++ b/src/wayland/server/buffer_interface.h
@@ -119,6 +119,14 @@ public:
      **/
     QImage data();
 
+    /**
+     * Returns the width of the buffer in device pixels.
+     */
+    int width() const;
+    /**
+     * Returns the height of the buffer in device pixels.
+     */
+    int height() const;
     /**
      * Returns the size of this BufferInterface.
      * Note: only for shared memory buffers (shmBuffer) the size can be derived,