diff --git a/zipline/core/process.py b/zipline/core/process.py
index 1bac176e..b2a01429 100644
--- a/zipline/core/process.py
+++ b/zipline/core/process.py
@@ -1,5 +1,6 @@
 """
-The process simulator. Each component in threading.Thread
+The process simulator. Each component in a separate
+multiprocessing.process.
 """
 
 import logbook