diff --git a/src/soc/intel/alderlake/Kconfig b/src/soc/intel/alderlake/Kconfig
index a73657e..ca0af8a 100644
--- a/src/soc/intel/alderlake/Kconfig
+++ b/src/soc/intel/alderlake/Kconfig
@@ -338,7 +338,7 @@
 
 # Clock divider parameters for 115200 baud rate
 # Baudrate = (UART source clock * M) /(N *16)
-# ADL UART source clock: 120MHz
+# ADL UART source clock: 100MHz
 config SOC_INTEL_COMMON_LPSS_UART_CLK_M_VAL
 	hex
 	default 0x25a