diff --git a/appveyor.yml b/appveyor.yml
index 59899c8..5f004eb 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -12,7 +12,7 @@ environment:
   pfx_password: 
     secure: mE14bVstcTzbnTIXdgPeDA==  
 before_build:
-  - ps: $psw = ConvertTo-SecureString $env:pfx_password -AsPlainText
+  - ps: $psw = ConvertTo-SecureString $env:pfx_password -AsPlainText -Force
   - ps: Import-PfxCertificate -FilePath .\Symlinker\key.pfx -CertStoreLocation cert:\CurrentUser\My -Password $psw  
 build_script:
 - msbuild /logger:"C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll" /t:Publish /p:ApplicationVersion={%APPVEYOR_BUILD_VERSION%}