diff --git a/target/linux/realtek/rtl931x/config-5.10 b/target/linux/realtek/rtl931x/config-5.10
index 319d766ae55..cc0fd34b385 100644
--- a/target/linux/realtek/rtl931x/config-5.10
+++ b/target/linux/realtek/rtl931x/config-5.10
@@ -12,6 +12,7 @@ CONFIG_CLKSRC_MMIO=y
 CONFIG_CLONE_BACKWARDS=y
 CONFIG_COMMON_CLK=y
 CONFIG_COMMON_CLK_BOSTON=y
+# CONFIG_COMMON_CLK_REALTEK is not set
 CONFIG_COMPAT_32BIT_TIME=y
 CONFIG_CONSOLE_LOGLEVEL_DEFAULT=15
 CONFIG_CPU_BIG_ENDIAN=y