diff --git a/Earphone/EarphoneLeftAndRight/EarphoneLeftAndRight.Android/EarphoneLeftAndRight.Android.csproj b/Earphone/EarphoneLeftAndRight/EarphoneLeftAndRight.Android/EarphoneLeftAndRight.Android.csproj
index f27598d..cbbf06c 100644
--- a/Earphone/EarphoneLeftAndRight/EarphoneLeftAndRight.Android/EarphoneLeftAndRight.Android.csproj
+++ b/Earphone/EarphoneLeftAndRight/EarphoneLeftAndRight.Android/EarphoneLeftAndRight.Android.csproj
@@ -58,7 +58,6 @@
     <AndroidUseAapt2>true</AndroidUseAapt2>
     <AndroidCreatePackagePerAbi>false</AndroidCreatePackagePerAbi>
     <AndroidKeyStore>false</AndroidKeyStore>
-    <AndroidLinkTool>proguard</AndroidLinkTool>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Mono.Android" />