diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 3813020e1c5..3b18c7bcb9a 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -251,7 +251,7 @@ jobs:
         set Path=D:\Cache\ocaml-local\bin;%Path%
         if "${{ matrix.host }}" equ "x86_64-pc-windows" call "C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Auxiliary\Build\vcvars64.bat"
         if "${{ matrix.host }}" equ "i686-pc-windows" call "C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Auxiliary\Build\vcvars32.bat"
-        opam init --yes --bare default git+file://D:/opam-repository#${{ env.OPAM_TEST_REPO_SHA }} || exit /b 1
+        opam init --yes --bare default git+file://D:/opam-repository#${{ env.OPAM_TEST_REPO_SHA }} --no-git-location || exit /b 1
         opam switch --yes create default ocaml-system || exit /b 1
         opam env || exit /b 1
         opam install --yes lwt || exit /b 1