Fix typo

diff --git a/docs/api.rst b/docs/api.rst
index 47760e365f18e459dc718dd63e7bdb04c978d9c1..ff0e3b21a14bd455f00cd17dbaccc5c169bc9a80 100644 (file)
--- a/docs/api.rst
+++ b/docs/api.rst
@@ -380,7 +380,7 @@ Undefined objects are created by calling :attr:`undefined`.
 
     To disallow a method, just override it and raise
     :attr:`~Undefined._undefined_exception`.  Because this is a very common
-    idom in undefined objects there is the helper method
+    idiom in undefined objects there is the helper method
     :meth:`~Undefined._fail_with_undefined_error` that does the error raising
     automatically.  Here a class that works like the regular :class:`Undefined`
     but chokes on iteration::