diff --git a/iu_paragraphs.module b/iu_paragraphs.module
index 674d444..d568a4f 100644
--- a/iu_paragraphs.module
+++ b/iu_paragraphs.module
@@ -288,7 +288,7 @@ function iu_paragraphs_preprocess_paragraph__iu_section(&$variables) {
 
   // Setup background image variable.
   $bgimage = $p->iu_section_bgimage->entity;
-  $variables['bgimage'] = !empty($bgimage) ? $file_url_generator->transformRelative($bgimage->getFileUri()) : FALSE;
+  $variables['bgimage'] = !empty($bgimage) ? $file_url_generator->generateString($bgimage->getFileUri()) : FALSE;
 
   // Setup background color class name variable.
   _iu_paragraphs_preprocess_paragraph__iu_section_background_color($variables);