diff --git a/ext/handle_svg/theme.php b/ext/handle_svg/theme.php
index 76d76aa3..8e87ee1d 100644
--- a/ext/handle_svg/theme.php
+++ b/ext/handle_svg/theme.php
@@ -5,8 +5,8 @@ class SVGFileHandlerTheme extends Themelet {
 		$ilink = make_link("get_svg/{$image->id}/{$image->id}.svg");
 //		$ilink = $image->get_image_link();
 		$html = "
-			<object data='$ilink' type='image/svg+xml' width='{$image->width}' height='{$image->height}'>
-			    <embed src='$ilink' type='image/svg+xml' width='{$image->width}' height='{$image->height}' />
+			<object data='$ilink' type='image/svg+xml' data-width='{$image->width}' data-height='{$image->height}' id='main_image' class='shm-main-image'>
+				<embed src='$ilink' type='image/svg+xml' />
 			</object>
 		";
 		$page->add_block(new Block("Image", $html, "main", 10));