diff --git a/include/asm-mips/mips_mt.h b/include/asm-mips/mips_mt.h
index fdfff0b8ce42575af3f3f78a2842600a84d725e0..8045abc78d0fc2a6eca35ba721f1e4e923307d36 100644
--- a/include/asm-mips/mips_mt.h
+++ b/include/asm-mips/mips_mt.h
@@ -6,6 +6,8 @@
 #ifndef __ASM_MIPS_MT_H
 #define __ASM_MIPS_MT_H
 
+#include <linux/cpumask.h>
+
 extern cpumask_t mt_fpu_cpumask;
 extern unsigned long mt_fpemul_threshold;