diff --git a/app/src/main/res/values-cs/strings.xml b/app/src/main/res/values-cs/strings.xml
index 673b8383a..7396c5245 100644
--- a/app/src/main/res/values-cs/strings.xml
+++ b/app/src/main/res/values-cs/strings.xml
@@ -3300,4 +3300,5 @@
     <string name="activity_type_bungee_jumping">Bungee jumping</string>
     <string name="activity_type_orienteering">Orientační běh</string>
     <string name="devicetype_garmin_venu">Garmin Venu</string>
+    <string name="authentication_failed_negotiation">Vyjednávání ověřovacího klíče se nezdařilo</string>
 </resources>
\ No newline at end of file