diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c
index de3e979..63c0724 100644
--- a/drivers/w1/w1.c
+++ b/drivers/w1/w1.c
@@ -31,6 +31,7 @@
 #include <linux/slab.h>
 #include <linux/sched.h>
 #include <linux/kthread.h>
+#include <linux/freezer.h>
 
 #include <asm/atomic.h>