diff --git a/src/account/kcContext/kcContextMocks.ts b/src/account/kcContext/kcContextMocks.ts
index e423bba7..c2a3e666 100644
--- a/src/account/kcContext/kcContextMocks.ts
+++ b/src/account/kcContext/kcContextMocks.ts
@@ -4,7 +4,7 @@ import { pathJoin } from "keycloakify/bin/tools/pathJoin";
 import { id } from "tsafe/id";
 import type { KcContext } from "./KcContext";
 
-const PUBLIC_URL = process.env["PUBLIC_URL"] ?? "/";
+const PUBLIC_URL = (typeof process !== "object" ? undefined : process.env?.["PUBLIC_URL"]) ?? "/";
 
 export const kcContextCommonMock: KcContext.Common = {
     "keycloakifyVersion": "0.0.0",
diff --git a/src/login/kcContext/kcContextMocks.ts b/src/login/kcContext/kcContextMocks.ts
index 62c1be4a..25af2534 100644
--- a/src/login/kcContext/kcContextMocks.ts
+++ b/src/login/kcContext/kcContextMocks.ts
@@ -6,7 +6,7 @@ import { id } from "tsafe/id";
 import { assert, type Equals } from "tsafe/assert";
 import type { LoginThemePageId } from "keycloakify/bin/keycloakify/generateFtl";
 
-const PUBLIC_URL = process.env["PUBLIC_URL"] ?? "/";
+const PUBLIC_URL = (typeof process !== "object" ? undefined : process.env?.["PUBLIC_URL"]) ?? "/";
 
 const attributes: Attribute[] = [
     {