diff --git a/Include/unicodeobject.h b/Include/unicodeobject.h
index 533dd75..0128d7f 100644
--- a/Include/unicodeobject.h
+++ b/Include/unicodeobject.h
@@ -2014,7 +2014,7 @@
 /* Rich compare two strings and return one of the following:
 
    - NULL in case an exception was raised
-   - Py_True or Py_False for successfully comparisons
+   - Py_True or Py_False for successful comparisons
    - Py_NotImplemented in case the type combination is unknown
 
    Note that Py_EQ and Py_NE comparisons can cause a UnicodeWarning in