diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h
index ff0181829f3db6dfb4323bf4032875ad04516d2e..919248fb4028bd084c0949dcea30f86796741367 100644
--- a/include/uapi/drm/amdgpu_drm.h
+++ b/include/uapi/drm/amdgpu_drm.h
@@ -553,6 +553,7 @@ union drm_amdgpu_fence_to_handle {
 	struct {
 		struct drm_amdgpu_fence fence;
 		__u32 what;
+		__u32 pad;
 	} in;
 	struct {
 		__u32 handle;