diff --git a/arch/c6x/mm/init.c b/arch/c6x/mm/init.c
index a9fcd89b251b..b74ccb5a7690 100644
--- a/arch/c6x/mm/init.c
+++ b/arch/c6x/mm/init.c
@@ -18,6 +18,7 @@
 #include <linux/initrd.h>
 
 #include <asm/sections.h>
+#include <asm/uaccess.h>
 
 /*
  * ZERO_PAGE is a special page that is used for zero-initialized