diff --git a/Doc/library/types.rst b/Doc/library/types.rst
index ec271e4..d291fd0 100644
--- a/Doc/library/types.rst
+++ b/Doc/library/types.rst
@@ -113,8 +113,8 @@
 
 .. data:: GeneratorType
 
-   The type of generator-iterator objects, produced by calling a generator
-   function.
+   The type of :term:`generator`-iterator objects, produced by calling a
+   generator function.
 
 
 .. data:: CodeType