diff --git a/front/php/templates/language/de_de.json b/front/php/templates/language/de_de.json
index be6f9f4d..8cecf0af 100755
--- a/front/php/templates/language/de_de.json
+++ b/front/php/templates/language/de_de.json
@@ -115,6 +115,9 @@
         "DevDetail_Shortcut_DownAlerts" : "Down Meldungen",
         "DevDetail_Tab_Details" : "Details",
         "DevDetail_Tab_Tools": "<i class=\"fa fa-screwdriver-wrench\"></i> Tools",
+	"DevDetail_Tab_Tools_Nslookup_Title": "Nslookup",
+	"DevDetail_Tab_Tools_Nslookup_Start": "Nslookup starten",
+	"DevDetail_Tab_Tools_Nslookup_Error": "Fehler: IP-Adresse ist ungültig",
 	"DevDetail_Tab_Tools_Ping_Title": "Ping",
 	"DevDetail_Tab_Tools_Ping_Start": "Ping starten",
 	"DevDetail_Tab_Tools_Ping_Error": "Fehler: IP-Adresse ist ungültig",