diff --git a/include/drm/ttm/ttm_caching.h b/include/drm/ttm/ttm_caching.h
index 235a743d90e1..a18f43e93aba 100644
--- a/include/drm/ttm/ttm_caching.h
+++ b/include/drm/ttm/ttm_caching.h
@@ -25,6 +25,8 @@
 #ifndef _TTM_CACHING_H_
 #define _TTM_CACHING_H_
 
+#include <linux/pgtable.h>
+
 #define TTM_NUM_CACHING_TYPES	3
 
 /**