diff --git a/layouts/partials/resource_builders/script.html b/layouts/partials/resource_builders/script.html
index 7ceaaf4..2a74c3b 100644
--- a/layouts/partials/resource_builders/script.html
+++ b/layouts/partials/resource_builders/script.html
@@ -17,7 +17,7 @@ looked up and built.
 
 {{- $resource := .resource -}}
 {{- $shouldMinify := .minify -}}
-{{- $isModule := .module -}}
+{{- $isModule := .module | default false -}}
 
 {{ if eq (printf "%T" $resource) "string" }}
   {{