diff --git a/Doc/library/stdtypes.rst b/Doc/library/stdtypes.rst
index 925ea54..935a5b2 100644
--- a/Doc/library/stdtypes.rst
+++ b/Doc/library/stdtypes.rst
@@ -801,7 +801,7 @@
 .. method:: str.capitalize()
 
    Return a copy of the string with its first character capitalized and the
-   rest lowered.
+   rest lowercased.
 
 
 .. method:: str.center(width[, fillchar])