diff --git a/apps/recorder/ChangeLog b/apps/recorder/ChangeLog
index 6a17dc603..4e39cef42 100644
--- a/apps/recorder/ChangeLog
+++ b/apps/recorder/ChangeLog
@@ -57,4 +57,5 @@
 0.45: Move recorder from widget into library
       Improve recorder ClockInfo icons
 0.46: Ensure altitude graph draws properly (or any graph using the last column of CSV data)
-      Lower accuracy of barometer data to ~1cm (saves about 15b/record)
\ No newline at end of file
+      Lower accuracy of barometer data to ~1cm (saves about 15b/record)
+0.47: Fix 'blip' on speed map on some recordings
\ No newline at end of file
diff --git a/apps/recorder/app.js b/apps/recorder/app.js
index 795eb905f..463d08004 100644
--- a/apps/recorder/app.js
+++ b/apps/recorder/app.js
@@ -325,6 +325,7 @@ function plotGraph(info, style) { "ram"
   var lt = 0; // last time
   //var tn = 0; // count for each time period
   var strt, dur = info.duration;
+  if (dur<1) dur=1;
   var f = require("Storage").open(filename,"r");
   if (f===undefined) return;
   var l = f.readLine(f);
@@ -372,7 +373,7 @@ function plotGraph(info, style) { "ram"
       l = f.readLine(f);
     }
     // now iterate
-    var p,lp = Bangle.project({lat:c[1],lon:c[2]});
+    var p,lp = Bangle.project({lat:c[latIdx],lon:c[lonIdx]});
     var t,dx,dy,d,lt = c[timeIdx];
     while(l!==undefined) {
       c=l.trim().split(",");
diff --git a/apps/recorder/metadata.json b/apps/recorder/metadata.json
index 364fb4f54..2d7e54bdd 100644
--- a/apps/recorder/metadata.json
+++ b/apps/recorder/metadata.json
@@ -2,7 +2,7 @@
   "id": "recorder",
   "name": "Recorder",
   "shortName": "Recorder",
-  "version": "0.46",
+  "version": "0.47",
   "description": "Record GPS position, heart rate and more in the background, then download to your PC.",
   "icon": "app.png",
   "tags": "tool,outdoors,gps,widget,clkinfo",