1 files changed, 1 insertions, 1 deletions
diff --git a/run_tests.py b/run_tests.py
index ebee602..aa8a589 100755
--- a/run_tests.py
+++ b/run_tests.py
@@ -38,7 +38,7 @@ def guess_backend(backend, msbuild_exe):
     # Auto-detect backend if unspecified
     backend_flags = []
     if backend is None:
-        if msbuild_exe is not None:
+        if msbuild_exe is not None and mesonlib.is_windows():
             backend = 'vs' # Meson will auto-detect VS version to use
         else:
             backend = 'ninja'