diff --git a/Tests/wmain.cpp b/Tests/wmain.cpp
index 2c9a2f2872..2a6ddd4a93 100755
--- a/Tests/wmain.cpp
+++ b/Tests/wmain.cpp
@@ -20,7 +20,11 @@ GTEST_API_ int main(int argc, char **argv)
     {
         int argc = 0;
         QStringList args;
+#if defined(_WIN32) && defined(UNICODE)
+        args << QString::fromWCharArray(argv[0]);
+#else
         args << QString::fromUtf8(argv[0]);
+#endif
         args << QString::fromUtf8("--clear-cache");
         args << QString::fromUtf8("--clear-openfx-cache");
         args << QString::fromUtf8("--no-settings");