diff --git a/trajectories/delta-encoded-measurement.proto b/trajectories/delta-encoded-measurement.proto
index f4104fd..8a35ca3 100644
--- a/trajectories/delta-encoded-measurement.proto
+++ b/trajectories/delta-encoded-measurement.proto
@@ -1,6 +1,6 @@
 message deviceTrajectory {
-  required bytes dates = 1 [packed=true];
-  required bytes signal_strengths = 2 [packed=true];
+  required bytes dates = 1;
+  required bytes signal_strengths = 2;
 }
 
 message trajectories {