diff --git a/runtime/doc/pi_zip.txt b/runtime/doc/pi_zip.txt
index 60e74d4..cfb8e37 100644
--- a/runtime/doc/pi_zip.txt
+++ b/runtime/doc/pi_zip.txt
@@ -1,4 +1,4 @@
-*pi_zip.txt*	For Vim version 7.3a.  Last change: 2010 Apr 12
+*pi_zip.txt*	For Vim version 7.3b.  Last change: 2010 Apr 12
 
 				+====================+
 				| Zip File Interface |