diff --git a/drivers/i2c/fsl_i2c.c b/drivers/i2c/fsl_i2c.c
index 258be0a..5b017a9 100644
--- a/drivers/i2c/fsl_i2c.c
+++ b/drivers/i2c/fsl_i2c.c
@@ -225,7 +225,7 @@
 void
 i2c_init(int speed, int slaveadd)
 {
-	struct fsl_i2c *dev;
+	const struct fsl_i2c *dev;
 	unsigned int temp;
 	int bus_num, i;