Index: includes/Linker.php
===================================================================
--- includes/Linker.php	(revision 15901)
+++ includes/Linker.php	(working copy)
@@ -645,7 +645,7 @@
 				$zoomicon =  '<div class="magnify" style="float:'.$magnifyalign.'">'.
 					'<a href="'.$u.'" class="internal" title="'.$more.'">'.
 					'<img src="'.$wgStylePath.'/common/images/magnify-clip.png" ' .
-					'width="15" height="11" alt="'.$more.'" /></a></div>';
+					'width="15" height="11" alt="" /></a></div>';
 			}
 		}
 		$s .= '  <div class="thumbcaption"'.$textalign.'>'.$zoomicon.$label."</div></div></div>";