diff --git a/drivers/hwmon/gl518sm.c b/drivers/hwmon/gl518sm.c
index 3b1ac48..33e9e8a 100644
--- a/drivers/hwmon/gl518sm.c
+++ b/drivers/hwmon/gl518sm.c
@@ -44,7 +44,7 @@
 #include <linux/sysfs.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_2(gl518sm_r00, gl518sm_r80);