diff --git a/Doc/lib/libstdtypes.tex b/Doc/lib/libstdtypes.tex
index 84ca938..5bd6590 100644
--- a/Doc/lib/libstdtypes.tex
+++ b/Doc/lib/libstdtypes.tex
@@ -834,7 +834,7 @@
                                        start\optional{, end}}}
 Return \code{True} if string starts with the \var{prefix}, otherwise
 return \code{False}.  \var{prefix} can also be a tuple of
-suffixes to look for.  With optional \var{start}, test string beginning at
+prefixes to look for.  With optional \var{start}, test string beginning at
 that position.  With optional \var{end}, stop comparing string at that
 position.