diff --git a/ci/build.ps1 b/ci/build.ps1
index da1ad2f4b6..42066c462b 100644
--- a/ci/build.ps1
+++ b/ci/build.ps1
@@ -137,8 +137,10 @@ if ($uploadToCodecov) {
 # Old tests
 # Add MSYS to path, required for e.g. `find` used in test scripts.
 # But would break functionaltests, where its `more` would be used then.
+$OldPath = $env:PATH
 $env:PATH = "C:\msys64\usr\bin;$env:PATH"
 & "C:\msys64\mingw$bits\bin\mingw32-make.exe" -C $(Convert-Path ..\src\nvim\testdir) VERBOSE=1
+$env:PATH = $OldPath
 
 if ($uploadToCodecov) {
   bash -l /c/projects/neovim/ci/common/submit_coverage.sh oldtest