diff --git a/Doc/lib/libexcs.tex b/Doc/lib/libexcs.tex
index b8d8f7c8a91..5742fe52bb6 100644
--- a/Doc/lib/libexcs.tex
+++ b/Doc/lib/libexcs.tex
@@ -1,7 +1,7 @@
 \section{Built-in Exceptions}
 
 \declaremodule{standard}{exceptions}
-\modulesynopsis{Standard exceptions classes.}
+\modulesynopsis{Standard exception classes.}
 
 
 Exceptions can be class objects or string objects.  Though most