diff --git a/doc/informal.tex b/doc/informal.tex
index 84b2523b..674fc88a 100644
--- a/doc/informal.tex
+++ b/doc/informal.tex
@@ -643,7 +643,7 @@ TX: 0
 
 \end{verbatim}
 
-It is more likely that we want to characterize the designs on a byte
+It is more likely that we want to characterize the design on a byte
 by byte basis, and align the two generators before transmitting each
 byte. In \myhdl{}, this is done with the \function{join} function. By
 joining clauses together in a \code{yield} statement, we create a new