diff --git a/product/ERP5Type/tests/runUnitTest.py b/product/ERP5Type/tests/runUnitTest.py
index 33e57c173f5ed97d5c674e350a3f3516dcbea5ec..382e5017d7067a289732dc2451d9a2e12315b9c9 100755
--- a/product/ERP5Type/tests/runUnitTest.py
+++ b/product/ERP5Type/tests/runUnitTest.py
@@ -346,11 +346,9 @@ def main():
   sys.exit(len(result.failures) + len(result.errors))
 
 if __name__ == '__main__':
-  # Force stdin, stdout and stderr to be totally unbuffered.
+  # Force stdout to be totally unbuffered.
   try:
-    sys.stdin = os.fdopen(0, "rb", 0)
     sys.stdout = os.fdopen(1, "wb", 0)
-    sys.stderr = os.fdopen(2, "wb", 0)
   except OSError:
     pass