diff --git a/docs/radar.md b/docs/radar.md
index 72b749c2..4ffe388d 100644
--- a/docs/radar.md
+++ b/docs/radar.md
@@ -11,7 +11,7 @@ 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: true, // return a track shape for each vehicle?
 	language: 'en' // language to get results in
 }
 ```
diff --git a/index.js b/index.js
index baae4860..244da13b 100644
--- a/index.js
+++ b/index.js
@@ -426,7 +426,7 @@ const createClient = (profile, userAgent, request = _request) => {
 			// todo: what happens with `frames: 0`?
 			frames: 3, // nr of frames to compute
 			products: null, // optionally an object of booleans
-			polylines: false // return a track shape for each vehicle?
+			polylines: true // return a track shape for each vehicle?
 		}, opt || {})
 		opt.when = new Date(opt.when || Date.now())
 		if (Number.isNaN(+opt.when)) throw new Error('opt.when is invalid')
@@ -458,7 +458,7 @@ const createClient = (profile, userAgent, request = _request) => {
 				lines: d.lines,
 				hints: d.hints,
 				warnings: d.warnings,
-				polylines: opt.polyline && d.common.polyL || []
+				polylines: opt.polylines && d.common.polyL || []
 			})
 			return d.jnyL.map(parse)
 		})
diff --git a/parse/movement.js b/parse/movement.js
index c51513a3..bc837763 100644
--- a/parse/movement.js
+++ b/parse/movement.js
@@ -37,15 +37,17 @@ const createParseMovement = (profile, opt, data) => {
 				}
 			}
 
-			if (m.ani.poly) {
-				const parse = profile.parsePolyline(profile, opt, data)
-				res.polyline = parse(m.ani.poly)
-			} else if (m.ani.polyG) {
-				let p = m.ani.polyG.polyXL
-				p = Array.isArray(p) && polylines[p[0]]
-				// todo: there can be >1 polyline
-				const parse = profile.parsePolyline(profile, opt, data)
-				res.polyline = p && parse(p) || null
+			if (opt.polylines) {
+				if (m.ani.poly) {
+					const parse = profile.parsePolyline(profile, opt, data)
+					res.polyline = parse(m.ani.poly)
+				} else if (m.ani.polyG) {
+					let p = m.ani.polyG.polyXL
+					p = Array.isArray(p) && polylines[p[0]]
+					// todo: there can be >1 polyline
+					const parse = profile.parsePolyline(profile, opt, data)
+					res.polyline = p && parse(p) || null
+				}
 			}
 		}