diff --git a/includes/webform_dropzonejs.theme.template.inc b/includes/webform_dropzonejs.theme.template.inc
index 5197360792e66cb51cbc0a239b34f9ef4baa2867..c3bf0422beead9eb9deaf967877df451be187ff3 100644
--- a/includes/webform_dropzonejs.theme.template.inc
+++ b/includes/webform_dropzonejs.theme.template.inc
@@ -9,6 +9,6 @@
  * Preprocesses "webform_element_dropzonejs"
  */
 function template_preprocess_webform_element_dropzonejs(array &$variables) {
-  module_load_include('inc', 'webform', 'includes/webform.theme.template');
+  \Drupal::moduleHandler()->loadInclude('webform', 'inc', 'includes/webform.theme.template');
   template_preprocess_webform_element_managed_file($variables);
 }
diff --git a/webform_dropzonejs.module b/webform_dropzonejs.module
index a6d0946d3e4ff4e630d3a3fcca90efa9a48c9cf2..048da5e1ce8bd62f9fa9db657dc706ead4d8a0ad 100644
--- a/webform_dropzonejs.module
+++ b/webform_dropzonejs.module
@@ -28,5 +28,6 @@ function webform_dropzonejs_theme() {
  * Preprocesses "webform_element_dropzonejs".
  */
 function template_preprocess_webform_element_dropzonejs(array &$variables) {
+  \Drupal::moduleHandler()->loadInclude('webform', 'inc', 'includes/webform.theme.template');
   template_preprocess_webform_element_managed_file($variables);
 }