Remove trailing whitespace.
diff --git a/Doc/c-api/module.rst b/Doc/c-api/module.rst
index 9be2a11..3a612e0 100644
--- a/Doc/c-api/module.rst
+++ b/Doc/c-api/module.rst
@@ -96,7 +96,7 @@
 
 .. cfunction:: int PyModule_AddIntMacro(PyObject *module, macro)
 
-   Add an int constant to *module*. The name and the value are taken from 
+   Add an int constant to *module*. The name and the value are taken from
    *macro*. For example ``PyModule_AddConstant(module, AF_INET)`` adds the int
    constant *AF_INET* with the value of *AF_INET* to *module*.
    Return ``-1`` on error, ``0`` on success.