diff --git a/bin/gopro-telemetry-exporter.js b/bin/gopro-telemetry-exporter.js
index c9c09fb..59ca401 100755
--- a/bin/gopro-telemetry-exporter.js
+++ b/bin/gopro-telemetry-exporter.js
@@ -28,8 +28,11 @@ async function main(options) {
     };
   }
 
-  goproTelemetry(res, _.omit(options, ['_', 'input', 'output']), telemetry => {
-    fs.writeFileSync(options.output, telemetry);
+  goproTelemetry(res, _.omit(options, ['_', 'input', 'output']), telemetryData => {
+    if (!_.isString(telemetryData)) {
+      telemetryData = JSON.stringify(telemetryData);
+    }
+    fs.writeFileSync(options.output, telemetryData);
   });
 
 }