diff --git a/contrib/windows/tests/winfstests.py b/contrib/windows/tests/winfstests.py
index d50324e3902e..f4913a29836b 100644
--- a/contrib/windows/tests/winfstests.py
+++ b/contrib/windows/tests/winfstests.py
@@ -239,7 +239,7 @@ def main():
                         total += 1
                         notok += 1
                 out = " ".join([str(test),
-                                ok, "/", total])
+                                str(ok), "/", str(total)])
 
                 print(out)
                 log_file.write(out)