More \exception fixes.
diff --git a/Doc/lib/liburllib2.tex b/Doc/lib/liburllib2.tex
index 706c54b..e0c4568 100644
--- a/Doc/lib/liburllib2.tex
+++ b/Doc/lib/liburllib2.tex
@@ -384,7 +384,7 @@
     \method{\var{protocol}_open()} are called to handle the request.
     This stage ends when a handler either returns a
     non-\constant{None} value (ie. a response), or raises an exception
-    (usually URLError).  Exceptions are allowed to propagate.
+    (usually \exception{URLError}).  Exceptions are allowed to propagate.
 
     In fact, the above algorithm is first tried for methods named
     \method{default_open}.  If all such methods return