diff --git a/book/binary/chapter.tex b/book/binary/chapter.tex
index 30613dc..e2696bf 100644
--- a/book/binary/chapter.tex
+++ b/book/binary/chapter.tex
@@ -822,8 +822,8 @@ When adding, {\em unsigned overflow} occurs when ever there is a carry
 
 When subtracting {\em unsigned} numbers, an overflow only occurs when the
 subtrahend is greater than the minuend (because in those cases the 
-different would have to be negative and there are no negative values 
-that can be represented with an unsigned binary number.)
+difference would be negative but no negative values 
+can be represented with an unsigned binary number.)
 
 \autoref{sum:3-4} illustrates an unsigned overflow during subtraction: