diff --git a/code/ThumbnailStripField.php b/code/ThumbnailStripField.php
index d8401e5b..3c236e26 100755
--- a/code/ThumbnailStripField.php
+++ b/code/ThumbnailStripField.php
@@ -71,7 +71,7 @@ class ThumbnailStripField extends FormField {
 				$result .= 
 						'<li>' .
 						'<a href=" ' . $image->Filename . '?r=' . rand(1,100000) . '">' .
-								'<img class="destwidth=' . round($width) . ',destheight=' . round($height) . '" src="'. $thumbnail->URL . '" alt="' . $image->Title . '" title="' . $image->Title .   '" />' .
+								'<img class="destwidth=' . round($width) . ',destheight=' . round($height) . '" src="'. $thumbnail->URL . '?r=' . rand(1,100000) . '" alt="' . $image->Title . '" title="' . $image->Title .   '" />' .
 						'</a>' .
 						'</li>';
 			}