diff --git a/docs/departures.md b/docs/departures.md
index 9930b5ad..6008b524 100644
--- a/docs/departures.md
+++ b/docs/departures.md
@@ -28,7 +28,8 @@ With `opt`, you can override the default options, which look like this:
 	direction: null, // only show departures heading to this station
 	duration:  10, // show departures for the next n minutes
 	stationLines: false, // parse & expose lines of the station?
-	remarks: true // parse & expose hints & warnings?
+	remarks: true, // parse & expose hints & warnings?
+	language: 'en' // language to get results in
 }
 ```
 
diff --git a/docs/journeys.md b/docs/journeys.md
index 1e7868a2..9cabaeda 100644
--- a/docs/journeys.md
+++ b/docs/journeys.md
@@ -67,7 +67,8 @@ With `opt`, you can override the default options, which look like this:
 	polylines: false, // return a shape for each leg?
 	remarks: true, // parse & expose hints & warnings?
 	// Consider walking to nearby stations at the beginning of a journey?
-	startWithWalking: true
+	startWithWalking: true,
+	language: 'en' // language to get results in
 }
 ```
 
diff --git a/docs/locations.md b/docs/locations.md
index 8337823d..3d961b0b 100644
--- a/docs/locations.md
+++ b/docs/locations.md
@@ -12,6 +12,7 @@ With `opt`, you can override the default options, which look like this:
 	, addresses: true
 	, poi:       true // points of interest
 	, stationLines: false // parse & expose lines of the station?
+	, language: 'en' // language to get results in
 }
 ```
 
diff --git a/docs/nearby.md b/docs/nearby.md
index c75d0f03..21eac15e 100644
--- a/docs/nearby.md
+++ b/docs/nearby.md
@@ -11,7 +11,8 @@ With `opt`, you can override the default options, which look like this:
 	distance: null, // maximum walking distance in meters
 	poi:      false, // return points of interest?
 	stations: true, // return stations?
-	stationLines: false // parse & expose lines of the station?
+	stationLines: false, // parse & expose lines of the station?
+	language: 'en' // language to get results in
 }
 ```
 
diff --git a/docs/radar.md b/docs/radar.md
index d10077ac..8dea87e4 100644
--- a/docs/radar.md
+++ b/docs/radar.md
@@ -11,7 +11,8 @@ With `opt`, you can override the default options, which look like this:
 	results: 256, // maximum number of vehicles
 	duration: 30, // compute frames for the next n seconds
 	frames: 3, // nr of frames to compute
-	polylines: false // return a track shape for each vehicle?
+	polylines: false, // return a track shape for each vehicle?
+	language: 'en' // language to get results in
 }
 ```
 
diff --git a/docs/station.md b/docs/station.md
index db780f5b..f8d46f47 100644
--- a/docs/station.md
+++ b/docs/station.md
@@ -23,7 +23,8 @@ With `opt`, you can override the default options, which look like this:
 
 ```js
 {
-	stationLines: false // parse & expose lines of the station?
+	stationLines: false, // parse & expose lines of the station?
+	language: 'en' // language to get results in
 }
 
 ## Response
diff --git a/docs/trip.md b/docs/trip.md
index 3122dd81..000359d4 100644
--- a/docs/trip.md
+++ b/docs/trip.md
@@ -29,7 +29,8 @@ With `opt`, you can override the default options, which look like this:
 	when: new Date(),
 	stopovers: true, // return stations on the way?
 	polyline: false, // return a shape for the trip?
-	remarks: true // parse & expose hints & warnings?
+	remarks: true, // parse & expose hints & warnings?
+	language: 'en' // language to get results in
 }
 ```
 
diff --git a/lib/request.js b/lib/request.js
index 6cedd1ca..1261a180 100644
--- a/lib/request.js
+++ b/lib/request.js
@@ -12,7 +12,10 @@ const {fetch} = require('fetch-ponyfill')({Promise})
 const md5 = input => createHash('md5').update(input).digest()
 
 const request = (profile, opt, data) => {
-	const body = profile.transformReqBody({lang: 'en', svcReqL: [data]})
+	const body = profile.transformReqBody({
+		lang: opt.language || 'en',
+		svcReqL: [data]
+	})
 	const req = profile.transformReq({
 		method: 'post',
 		// todo: CORS? referrer policy?