diff --git a/drivers/clk/sprd/ums512-clk.c b/drivers/clk/sprd/ums512-clk.c
index fc25bdd85e4e..f43bb10bd5ae 100644
--- a/drivers/clk/sprd/ums512-clk.c
+++ b/drivers/clk/sprd/ums512-clk.c
@@ -800,7 +800,7 @@ static SPRD_MUX_CLK_DATA(uart1_clk, "uart1-clk", uart_parents,
 			 0x250, 0, 3, UMS512_MUX_FLAG);
 
 static const struct clk_parent_data thm_parents[] = {
-	{ .fw_name = "ext-32m" },
+	{ .fw_name = "ext-32k" },
 	{ .hw = &clk_250k.hw  },
 };
 static SPRD_MUX_CLK_DATA(thm0_clk, "thm0-clk", thm_parents,