--- modules/image/image.admin.inc
+++ modules/image/image.admin.inc
@@ -694,9 +694,9 @@ function theme_image_style_preview($style) {
 
   // Build the preview of the original image.
   $output .= '<div class="preview-image-wrapper">';
-  $output .= t('original') . ' (' . l(t('view actual size'), $original_path) . ')';
+  $output .= t('original') . ' (' . l(t('view actual size'), file_create_url($original_path)) . ')';
   $output .= '<div class="preview-image original-image" style="' . $original_attributes['style'] . '">';
-  $output .= '<a href="' . url($original_path) . '?' . time() . '">' . theme('image', $original_path . '?' . time(), t('Sample original image'), '', $original_attributes, FALSE) . '</a>';
+  $output .= '<a href="' . file_create_url($original_path . '?' . time()) . '">' . theme('image', $original_path . '?' . time(), t('Sample original image'), '', $original_attributes, FALSE) . '</a>';
   $output .= '<div class="height" style="height: ' . $original_height . 'px"><span>' . $original_image['height'] . 'px</span></div>';
   $output .= '<div class="width" style="width: ' . $original_width . 'px"><span>' . $original_image['width'] . 'px</span></div>';
   $output .= '</div>'; // End preview-image.