diff --git a/zipline/core/monitor.py b/zipline/core/monitor.py
index de0a8b59..05bdfce1 100644
--- a/zipline/core/monitor.py
+++ b/zipline/core/monitor.py
@@ -33,7 +33,7 @@ class UnknownChatter(Exception):
     def __init__(self, name):
         self.named = name
     def __str__(self):
-        return """Component calling itself "%s" talking on unexpected channel"""\
+        return "Component calling itself '%s' talking on unexpected channel"
             % self.named