diff --git a/arch/avr32/lib/delay.c b/arch/avr32/lib/delay.c
index 76a8474607f7..b3bc0b56e2c6 100644
--- a/arch/avr32/lib/delay.c
+++ b/arch/avr32/lib/delay.c
@@ -12,6 +12,7 @@
 
 #include <linux/delay.h>
 #include <linux/module.h>
+#include <linux/param.h>
 #include <linux/types.h>
 
 #include <asm/processor.h>