diff --git a/arch/openrisc/include/asm/smp.h b/arch/openrisc/include/asm/smp.h
index 007296f160ef..84653aaffa96 100644
--- a/arch/openrisc/include/asm/smp.h
+++ b/arch/openrisc/include/asm/smp.h
@@ -9,6 +9,8 @@
 #ifndef __ASM_OPENRISC_SMP_H
 #define __ASM_OPENRISC_SMP_H
 
+#include <linux/cpumask.h>
+
 #include <asm/spr.h>
 #include <asm/spr_defs.h>