diff --git a/Doc/lib/libctypes.tex b/Doc/lib/libctypes.tex
index 2f880f23fc8..184875f1b5b 100755
--- a/Doc/lib/libctypes.tex
+++ b/Doc/lib/libctypes.tex
@@ -1219,7 +1219,7 @@ py_cmp_func 5 7
 It is quite interesting to see that the Windows \function{qsort} function
 needs more comparisons than the linux version!
 
-As we can easily check, our array sorted now:
+As we can easily check, our array is sorted now:
 \begin{verbatim}
 >>> for i in ia: print i,
 ...