diff --git a/appveyor.yml b/appveyor.yml
index a4a6fa238..e3c23dfbb 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -414,7 +414,7 @@ for:
   deploy_script:
     - ps: |
         if ($env:WITH_CRASH_REPORTING -eq "True") {
-          $qmakeOutput = $env:QTDIR\bin\$env:QMAKE -query QT_VERSION
+          $qmakeOutput = & "$env:QTDIR\bin\$env:QMAKE" -query QT_VERSION
           $majorMinorVersion = $qmakeOutput -replace '\D+(\d+)\.(\d+).*', '$1_$2'
           $env:CRASH_QT_VERSION = $majorMinorVersion