diff -r 79ccf36b0fd0 Doc/library/asyncio-dev.rst
--- a/Doc/library/asyncio-dev.rst	Tue Feb 18 01:35:40 2014 +0100
+++ b/Doc/library/asyncio-dev.rst	Mon Feb 17 22:12:27 2014 -0500
@@ -13,7 +13,7 @@
 ------------------------------
 
 An event loop runs in a thread and executes all callbacks and tasks in the same
-thread. While a task in running in the event loop, no other task is running in
+thread. While a task is running in the event loop, no other task is running in
 the same thread. But when the task uses ``yield from``, the task is suspended
 and the event loop executes the next task.