spelling: asynchronous

1 files changed, 1 insertions, 1 deletions

diff --git a/ext/coroutine/coroutine.h b/ext/coroutine/coroutine.h
index 0f36c3f890..612b06b011 100644
--- a/ext/coroutine/coroutine.h
+++ b/ext/coroutine/coroutine.h
@@ -20,7 +20,7 @@
 // a single int.
 //
 // A reentrant function contains a CORO_REENTER (coroutine)  { ... }
-// block.  Whenever an asychrnonous operation is initiated within the
+// block.  Whenever an asynchronous operation is initiated within the
 // routine, the function is provided as the handler object.  (The simplest
 // way to do this is to have the reentrant function be the operator()
 // member for the coroutine object itself.)   For example: