diff --git a/src/client/config.js b/src/client/config.js
index b73c971..b2d6ebd 100644
--- a/src/client/config.js
+++ b/src/client/config.js
@@ -1,6 +1,9 @@
 // eslint-disable-next-line no-undef
 const config = __CONFIG__
 config.namespace = new URL(config.namespace)
+config.localStorageKeys = {
+  locale: `jskos-proxy${config.namespace.pathname.replaceAll("/", "-")}locale`,
+}
 
 document.title = config.title
 
diff --git a/src/client/i18n.js b/src/client/i18n.js
index 39b3ed0..1b7df96 100644
--- a/src/client/i18n.js
+++ b/src/client/i18n.js
@@ -1,11 +1,12 @@
 import { createI18n } from "vue-i18n"
 import messages from "#/locale.json"
+import config from "@/config.js"
 
 let locale
 
 // Try to ready locale from local storage
 try {
-  locale = localStorage.getItem("locale")
+  locale = localStorage.getItem(config.localStorageKeys.locale)
 } catch (error) {
   console.warn("Error reading locale from local storage.")
 }
diff --git a/src/client/store.js b/src/client/store.js
index 98c8764..b79132a 100644
--- a/src/client/store.js
+++ b/src/client/store.js
@@ -31,7 +31,7 @@ export function setLocale(value) {
   // Adjust state.languages inline so that jskos-tools "reacts"
   state.languages.splice(0, 0, state.languages.splice(index, 1)[0])
   try {
-    localStorage.setItem("locale", value)
+    localStorage.setItem(config.localStorageKeys.locale, value)
   } catch (error) {
     console.error("Error storing locale in local storage", error)
   }