diff --git a/web/skins/classic/views/console.php b/web/skins/classic/views/console.php
index 680bbd725..d7404cd34 100644
--- a/web/skins/classic/views/console.php
+++ b/web/skins/classic/views/console.php
@@ -380,7 +380,7 @@ echo $Server->Name();
 <?php
     }
 ?>
-            <div class="colMark"><input type="checkbox" name="markMids[]" value="<?php echo $monitor['Id'] ?>" onclick="setButtonStates( this )"<?php if ( !canEdit( 'Monitors' ) ) { ?> disabled="disabled"<?php } ?>/></div>
+            <div class="colMark"><input type="checkbox" name="markMids[]" value="<?php echo $monitor['Id'] ?>" onclick="setButtonStates( this );"<?php if ( !canEdit( 'Monitors' ) ) { ?> disabled="disabled"<?php } ?>/></div>
           </div>
 <?php
 }