diff --git a/build/boards/cv181x/sg2000_milkv_duos_glibc_arm64_sd/dts_arm64/sg2000_milkv_duos_glibc_arm64_sd.dts b/build/boards/cv181x/sg2000_milkv_duos_glibc_arm64_sd/dts_arm64/sg2000_milkv_duos_glibc_arm64_sd.dts
index 259b8da14..b3209d2c2 100644
--- a/build/boards/cv181x/sg2000_milkv_duos_glibc_arm64_sd/dts_arm64/sg2000_milkv_duos_glibc_arm64_sd.dts
+++ b/build/boards/cv181x/sg2000_milkv_duos_glibc_arm64_sd/dts_arm64/sg2000_milkv_duos_glibc_arm64_sd.dts
@@ -12,3 +12,7 @@
 	};
 };
 
+&dac {
+	/delete-property/ mute-gpio-l;
+	/delete-property/ mute-gpio-r;
+};
diff --git a/build/boards/cv181x/sg2000_milkv_duos_musl_riscv64_sd/dts_riscv/sg2000_milkv_duos_musl_riscv64_sd.dts b/build/boards/cv181x/sg2000_milkv_duos_musl_riscv64_sd/dts_riscv/sg2000_milkv_duos_musl_riscv64_sd.dts
index b92ba059a..e15edb472 100644
--- a/build/boards/cv181x/sg2000_milkv_duos_musl_riscv64_sd/dts_riscv/sg2000_milkv_duos_musl_riscv64_sd.dts
+++ b/build/boards/cv181x/sg2000_milkv_duos_musl_riscv64_sd/dts_riscv/sg2000_milkv_duos_musl_riscv64_sd.dts
@@ -8,3 +8,8 @@
 	model = "Milk-V DuoS";
 };
 
+&dac {
+	/delete-property/ mute-gpio-l;
+	/delete-property/ mute-gpio-r;
+};
+