diff --git a/drivers/i2c/fsl_i2c.c b/drivers/i2c/fsl_i2c.c
index 5b017a9..3cb232f 100644
--- a/drivers/i2c/fsl_i2c.c
+++ b/drivers/i2c/fsl_i2c.c
@@ -214,7 +214,7 @@
 	return speed;
 }
 
-unsigned int get_i2c_clock(int bus)
+static unsigned int get_i2c_clock(int bus)
 {
 	if (bus)
 		return gd->i2c2_clk;	/* I2C2 clock */