diff --git a/tools/misc/appveyorTestRunScript.bat b/tools/misc/appveyorTestRunScript.bat
index c491d507..5982fc92 100644
--- a/tools/misc/appveyorTestRunScript.bat
+++ b/tools/misc/appveyorTestRunScript.bat
@@ -1,5 +1,7 @@
 SETLOCAL EnableDelayedExpansion
 
+rem Disable launching the JIT debugger for ctest.exe
+reg add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AeDebug\AutoExclusionList" /v "ctest.ext" /t REG_DWORD /d 1
 cd Build
 if "%CONFIGURATION%"=="Debug" (
   if "%coverage%"=="1" (