diff --git a/WebContent/localization/OSRM.Locale.de.js b/WebContent/localization/OSRM.Locale.de.js
index 161fa9299..cef17bd45 100644
--- a/WebContent/localization/OSRM.Locale.de.js
+++ b/WebContent/localization/OSRM.Locale.de.js
@@ -60,6 +60,8 @@ OSRM.Localization["de"] = {
 "SW": "Südwest",
 "NW": "Nordwest",
 // driving directions
+// %s: road name
+// [*]: will only be printed when there actually is a road name
 "DIRECTION_0":"Unbekannte Anweisung[ auf <b>%s</b>]",
 "DIRECTION_1":"Geradeaus weiterfahren[ auf <b>%s</b>]",
 "DIRECTION_2":"Leicht rechts abbiegen[ auf <b>%s</b>]",
diff --git a/WebContent/localization/OSRM.Locale.en.js b/WebContent/localization/OSRM.Locale.en.js
index a67d5bbf1..a65870423 100644
--- a/WebContent/localization/OSRM.Locale.en.js
+++ b/WebContent/localization/OSRM.Locale.en.js
@@ -60,6 +60,8 @@ OSRM.Localization["en"] = {
 "SW": "southwest",
 "NW": "northwest",
 // driving directions
+// %s: road name
+// [*]: will only be printed when there actually is a road name
 "DIRECTION_0":"Unknown instruction[ on <b>%s</b>]",
 "DIRECTION_1":"Continue[ on <b>%s</b>]",
 "DIRECTION_2":"Turn slight right[ on <b>%s</b>]",