diff --git a/drivers/clk/samsung/clk-exynos5420.c b/drivers/clk/samsung/clk-exynos5420.c
index 1e0cbf762408..199843f12ae5 100644
--- a/drivers/clk/samsung/clk-exynos5420.c
+++ b/drivers/clk/samsung/clk-exynos5420.c
@@ -139,6 +139,9 @@
 #define SRC_KFC			0x28200
 #define DIV_KFC0		0x28500
 
+/* NOTE: Must be equal to the last clock ID increased by one */
+#define CLKS_NR			(CLK_DOUT_PCLK_DREX1 + 1)
+
 /* Exynos5x SoC type */
 enum exynos5x_soc {
 	EXYNOS5420,
@@ -1587,7 +1590,7 @@ static void __init exynos5x_clk_init(struct device_node *np,
 
 	exynos5x_soc = soc;
 
-	ctx = samsung_clk_init(NULL, reg_base, CLK_NR_CLKS);
+	ctx = samsung_clk_init(NULL, reg_base, CLKS_NR);
 	hws = ctx->clk_data.hws;
 
 	samsung_clk_of_register_fixed_ext(ctx, exynos5x_fixed_rate_ext_clks,