diff --git a/packages/ember-svg-jar/addon/helpers/svg-jar.d.ts b/packages/ember-svg-jar/addon/helpers/svg-jar.d.ts
index f018be2..a3c36c1 100644
--- a/packages/ember-svg-jar/addon/helpers/svg-jar.d.ts
+++ b/packages/ember-svg-jar/addon/helpers/svg-jar.d.ts
@@ -13,6 +13,7 @@ interface SvgJarAttrs {
   role?: string | null;
   title?: string | null;
   desc?: string | null;
+  [key: string]: unknown
 }
 
 type SvgJarReturn = SVGElement;