diff --git a/Doc/lib/tkinter.tex b/Doc/lib/tkinter.tex
index 5401dfb..8bb59d5 100644
--- a/Doc/lib/tkinter.tex
+++ b/Doc/lib/tkinter.tex
@@ -692,7 +692,7 @@
 as in \code{"@/usr/contrib/bitmap/gumby.bit"}.
 
 \item[boolean]
-You can pass integers 0 or 1 or the stings \code{"yes"} or \code{"no"} .
+You can pass integers 0 or 1 or the strings \code{"yes"} or \code{"no"} .
 
 \item[callback]
 This is any Python function that takes no arguments.  For example: