diff --git a/packages/core/src/oidc-utils.ts b/packages/core/src/oidc-utils.ts
index 68d3a370..e33da5f1 100644
--- a/packages/core/src/oidc-utils.ts
+++ b/packages/core/src/oidc-utils.ts
@@ -68,7 +68,8 @@ export class OidcClient {
       // New ID Token is requested from action service
       let id_token_url: string = OidcClient.getIDTokenUrl()
       if (audience) {
-        id_token_url = `${id_token_url}&audience=${encodeURIComponent(audience)}`
+        const encodedAudience = encodeURIComponent(audience)
+        id_token_url = `${id_token_url}&audience=${encodedAudience}`
       }
 
       debug(`ID token url is ${id_token_url}`)