diff --git a/shared-core/Makefile.am b/shared-core/Makefile.am
index 7193e527..42e08e75 100644
--- a/shared-core/Makefile.am
+++ b/shared-core/Makefile.am
@@ -32,6 +32,7 @@ klibdrminclude_HEADERS = \
                          nouveau_drm.h \
                          r128_drm.h \
                          radeon_drm.h \
+                         radeon_ms_drm.h \
                          savage_drm.h \
                          sis_drm.h \
                          via_drm.h \
diff --git a/shared-core/radeon_ms_drm.h b/shared-core/radeon_ms_drm.h
index 842d5331..7186030c 100644
--- a/shared-core/radeon_ms_drm.h
+++ b/shared-core/radeon_ms_drm.h
@@ -57,4 +57,12 @@ struct drm_radeon_execbuffer {
 	struct drm_fence_arg fence_arg;
 };
 
+#define RADEON_MS_MAX_SAREA_CLIPRECTS 16
+
+struct drm_radeon_ms_sarea {
+	/* the cliprects */
+	struct drm_clip_rect boxes[RADEON_MS_MAX_SAREA_CLIPRECTS];
+	unsigned int nbox;
+};
+
 #endif