diff --git a/src/icon/icon.service.ts b/src/icon/icon.service.ts
index 98cc87d5ff..ff1923b944 100644
--- a/src/icon/icon.service.ts
+++ b/src/icon/icon.service.ts
@@ -110,7 +110,7 @@ export class IconNameNotFoundError extends Error {
  */
 export class IconSizeNotFoundError extends Error {
 	constructor(size: string, name: string) {
-		super("Size ${size} for ${name} not found");
+		super(`Size ${size} for ${name} not found`);
 	}
 }