diff --git a/appveyor.yml b/appveyor.yml
index 324d1d9..9b46193 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -22,8 +22,8 @@ test_script:
   - ps: if ($env:APPVEYOR_BUILD_WORKER_IMAGE -eq "Visual Studio 2017") { .\tests\autotest-appveyor.ps1 15 }
   - ps: if ($env:APPVEYOR_BUILD_WORKER_IMAGE -eq "Visual Studio 2019") { .\tests\autotest-appveyor.ps1 19 }
   - ps: if ($env:APPVEYOR_BUILD_WORKER_IMAGE -eq "Visual Studio 2022") { .\tests\autotest-appveyor.ps1 22 }
-  - ps: if ($env:APPVEYOR_BUILD_WORKER_IMAGE -eq "Visual Studio 2015") { & C:\cygwin\bin\bash.exe -c "PATH=/usr/bin:/usr/local/bin:$PATH; make config=coverage test && bash <(curl -s https://codecov.io/bash) -f pugixml.cpp.gcov 2>&1" }
-  - ps: if ($env:APPVEYOR_BUILD_WORKER_IMAGE -eq "Visual Studio 2015") { & C:\cygwin\bin\bash.exe -c "PATH=/usr/bin:/usr/local/bin:$PATH; make config=coverage defines=PUGIXML_WCHAR_MODE test && bash <(curl -s https://codecov.io/bash) -f pugixml.cpp.gcov 2>&1" }
+  - ps: if ($env:APPVEYOR_BUILD_WORKER_IMAGE -eq "Visual Studio 2015") { & C:\cygwin\bin\bash.exe -c "PATH=/usr/bin:/usr/local/bin:$PATH; make -j2 config=coverage test && bash <(curl -s https://codecov.io/bash) -f pugixml.cpp.gcov 2>&1" }
+  - ps: if ($env:APPVEYOR_BUILD_WORKER_IMAGE -eq "Visual Studio 2015") { & C:\cygwin\bin\bash.exe -c "PATH=/usr/bin:/usr/local/bin:$PATH; make -j2 config=coverage defines=PUGIXML_WCHAR_MODE test && bash <(curl -s https://codecov.io/bash) -f pugixml.cpp.gcov 2>&1" }
 
 artifacts:
   - path: .\scripts\*.nupkg