diff -u b/svg_image.module b/svg_image.module
--- b/svg_image.module
+++ b/svg_image.module
@@ -83,8 +83,8 @@
 
         if ($svg) {
           if (!empty($svg['width']) && !empty($svg['height'])) {
-            $variables['width'] = $svg['width'];
-            $variables['height'] = $svg['height'];
+            $variables['width'] = (integer) $svg['width'];
+            $variables['height'] = (integer) $svg['height'];
           } else if (!empty($svg['viewBox'])) {
             // Try with viewBox
             $parts = explode(' ', $svg['viewBox']);