diff --git a/src/pupil_labs/neon_recording/stream/stream.py b/src/pupil_labs/neon_recording/stream/stream.py
index 1e1527f..1d1bce0 100644
--- a/src/pupil_labs/neon_recording/stream/stream.py
+++ b/src/pupil_labs/neon_recording/stream/stream.py
@@ -73,7 +73,7 @@ def data(self):
 
     @property
     def ts(self):
-        return self._data.ts
+        return self._data['ts']
 
 
 SimpleDataSampler.sampler_class = SimpleDataSampler