diff --git a/util/decode_packet_trace.py b/util/decode_packet_trace.py
index 34a0d8bbce..c21a150faf 100755
--- a/util/decode_packet_trace.py
+++ b/util/decode_packet_trace.py
@@ -105,6 +105,9 @@ def main():
     print "Object id:", header.obj_id
     print "Tick frequency:", header.tick_freq
 
+    for id_string in header.id_strings:
+        print 'Master id %d: %s' % (id_string.key, id_string.value)
+
     print "Parsing packets"
 
     num_packets = 0