diff --git a/drivers/i2c/chips/m41t00.c b/drivers/i2c/chips/m41t00.c
index e516dad..3f14528 100644
--- a/drivers/i2c/chips/m41t00.c
+++ b/drivers/i2c/chips/m41t00.c
@@ -144,7 +144,7 @@
 	return;
 }
 
-ulong	new_time;
+static ulong	new_time;
 
 DECLARE_TASKLET_DISABLED(m41t00_tasklet, m41t00_set_tlet, (ulong)&new_time);