diff --git a/track.c b/track.c
index 7f1fe7a..97476cd 100644
--- a/track.c
+++ b/track.c
@@ -300,7 +300,6 @@ static void updatePosition(struct aircraft *a, struct modesMessage *mm, time_t n
         // Update aircraft state
         a->bFlags |= (MODES_ACFLAGS_LATLON_VALID | MODES_ACFLAGS_LATLON_REL_OK);
         a->seenLatLon      = a->seen;
-        a->timestampLatLon = a->timestamp;
     }
 }
 
@@ -325,7 +324,6 @@ struct aircraft *trackUpdateFromMessage(struct modesMessage *mm)
 
     a->signalLevel[a->messages & 7] = mm->signalLevel;// replace the 8th oldest signal strength
     a->seen      = now;
-    a->timestamp = mm->timestampMsg;
     a->messages++;
 
     // If a (new) CALLSIGN has been received, copy it to the aircraft structure
diff --git a/track.h b/track.h
index 85e1a07..452b8d4 100644
--- a/track.h
+++ b/track.h
@@ -67,8 +67,6 @@ struct aircraft {
     int           vert_rate;      // Vertical rate.
     time_t        seen;           // Time at which the last packet was received
     time_t        seenLatLon;     // Time at which the last lat long was calculated
-    uint64_t      timestamp;      // Timestamp at which the last packet was received
-    uint64_t      timestampLatLon;// Timestamp at which the last lat long was calculated
     long          messages;       // Number of Mode S messages received
     int           modeA;          // Squawk
     int           modeC;          // Altitude