diff --git a/include/asm-avr32/io.h b/include/asm-avr32/io.h
index d030c262a5..06e52b137f 100644
--- a/include/asm-avr32/io.h
+++ b/include/asm-avr32/io.h
@@ -22,6 +22,8 @@
 #ifndef __ASM_AVR32_IO_H
 #define __ASM_AVR32_IO_H
 
+#include <asm/types.h>
+
 #ifdef __KERNEL__
 
 /*