diff --git a/drivers/hwmon/smsc47m192.c b/drivers/hwmon/smsc47m192.c
index 8b0c188..3c9db65 100644
--- a/drivers/hwmon/smsc47m192.c
+++ b/drivers/hwmon/smsc47m192.c
@@ -34,7 +34,7 @@
 #include <linux/mutex.h>
 
 /* Addresses to scan */
-static unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END };
+static const unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END };
 
 /* Insmod parameters */
 I2C_CLIENT_INSMOD_1(smsc47m192);