diff --git a/tests-clar/core/path.c b/tests-clar/core/path.c
index 864393b70..e2f78ea50 100644
--- a/tests-clar/core/path.c
+++ b/tests-clar/core/path.c
@@ -87,6 +87,11 @@ void test_core_path__00_dirname(void)
 	check_dirname(".git/", ".");
 
 	check_dirname(REP16("/abc"), REP15("/abc"));
+
+#ifdef GIT_WIN32
+	check_dirname("C:/path/", "C:/");
+	check_dirname("C:/path", "C:/");
+#endif
 }
 
 /* get the base name of a path */