diff --git a/include/asm-alpha/tlbflush.h b/include/asm-alpha/tlbflush.h
index eefab3fb51ae..b9e9147226f7 100644
--- a/include/asm-alpha/tlbflush.h
+++ b/include/asm-alpha/tlbflush.h
@@ -3,6 +3,7 @@
 
 #include <linux/mm.h>
 #include <asm/compiler.h>
+#include <asm/pgalloc.h>
 
 #ifndef __EXTERN_INLINE
 #define __EXTERN_INLINE extern inline