diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 690a0c6..a3def53 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -208,7 +208,7 @@
 	return 0;
 }
 
-int clk_is_enabled(struct clk *clk)
+static int clk_is_enabled(struct clk *clk)
 {
 	int enabled;