Index: image.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/image/image.module,v
retrieving revision 1.209.2.18
diff -u -r1.209.2.18 image.module
--- image.module	2 Apr 2007 16:38:18 -0000	1.209.2.18
+++ image.module	3 Apr 2007 16:24:14 -0000
@@ -438,7 +438,7 @@
   }
 
   $info = image_get_info(file_create_path($node->images[$label]));
-  $attributes['class'] = "image $label". (isset($attributes['class']) ? " ". $attributes['class'] : "");
+  $attributes['class'] = "image image-$label ". (isset($attributes['class']) ? $attributes['class'] : "");
   $attributes['width'] = $info['width'];
   $attributes['height'] = $info['height'];