diff --git a/src/frontend/apps/impress/src/i18n/initI18n.ts b/src/frontend/apps/impress/src/i18n/initI18n.ts
index 2cff5f90..7d601c1f 100644
--- a/src/frontend/apps/impress/src/i18n/initI18n.ts
+++ b/src/frontend/apps/impress/src/i18n/initI18n.ts
@@ -14,6 +14,7 @@ i18n
       escapeValue: false,
     },
     preload: LANGUAGES_ALLOWED,
+    nsSeparator: '||',
   })
   .catch(() => {
     throw new Error('i18n initialization failed');