diff --git a/clients/rospy/src/rospy/impl/rosout.py b/clients/rospy/src/rospy/impl/rosout.py
index 4514031809..a1ce4d84c6 100644
--- a/clients/rospy/src/rospy/impl/rosout.py
+++ b/clients/rospy/src/rospy/impl/rosout.py
@@ -121,7 +121,7 @@ def _rosout(level, msg, fname, line, func):
 
 class RosOutHandler(logging.Handler):
    def emit(self, record):
-      _rosout(_logging_to_rospy_levels[record.levelno], record.getMessage(),
+      _rosout(_logging_to_rospy_levels[record.levelno], self.format(record),
             record.filename, record.lineno, record.funcName)
 
 ## Load loggers for publishing to /rosout