diff --git a/appveyor.yml b/appveyor.yml
index ad34ddb6..ac1a2df6 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -7,11 +7,14 @@ environment:
 init:
   - cmd: appveyor DownloadFile "https://dl.google.com/android/repository/tools_r25.2.5-windows.zip" -FileName "C:\android-tools.zip"
   - cmd: 7z x "C:\android-tools.zip" -o"%ANDROID_HOME%" > nul
-  - cmd: IF NOT [%APPVEYOR_PULL_REQUEST_NUMBER%] == [] cinst cs-script
-  - cmd: IF NOT [%APPVEYOR_PULL_REQUEST_NUMBER%] == [] cscs
-  - cmd: IF NOT [%APPVEYOR_PULL_REQUEST_NUMBER%] == [] cscs -ac:2 -nl C:\FH\.github\check_translations.cs
 
 install:
+  - ps: |
+      IF ($env:APPVEYOR_PULL_REQUEST_NUMBER) {
+        cinst cs-script
+        cscs
+        cscs -ac:2 -nl C:\FH\.github\check_translations.cs
+      }
   - cmd: 'echo   > C:/Users/appveyor/.android/repositories.cfg'
   - ps: 'echo "y" | & C:/Android/android-sdk/tools/bin/sdkmanager.bat "platform-tools"'
   - ps: 'echo "y" | & C:/Android/android-sdk/tools/bin/sdkmanager.bat "extras;android;m2repository"'