Index: node.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/node/node.module,v
retrieving revision 1.698
diff -u -p -r1.698 node.module
--- node.module	6 Sep 2006 07:27:41 -0000	1.698
+++ node.module	6 Sep 2006 18:55:01 -0000
@@ -677,7 +677,7 @@ function node_prepare($node, $teaser = F
     );
   }
 
-  if (strlen($node->teaser) < strlen($node->body)) {
+  if ($teaser && strlen($node->teaser) < strlen($node->body)) {
     $node->readmore = TRUE;
   }