diff --git a/pytools/__init__.py b/pytools/__init__.py
index 6f6752a0af14f53f13a7f349acf71b9bd05a932f..460a68ed204bb77c33d7aef97374251159dda090 100644
--- a/pytools/__init__.py
+++ b/pytools/__init__.py
@@ -2185,7 +2185,7 @@ class ProcessLogger(object):  # pylint: disable=too-many-instance-attributes
         if sys.stdin is None:
             # Can happen, e.g., if pudb is controlling the console.
             use_late_start_logging = False
-        else sys.stdin.isatty():
+        else:
             use_late_start_logging = sys.stdin.isatty()
 
         import os