diff --git a/python/transmitter/txtime_bursts_tagger.py b/python/transmitter/txtime_bursts_tagger.py
index a083c48..de42f65 100644
--- a/python/transmitter/txtime_bursts_tagger.py
+++ b/python/transmitter/txtime_bursts_tagger.py
@@ -73,8 +73,8 @@
           txtime_corrected = txtime - self.delay_correction
           txtime_final = txtime_corrected - self.timing_advance
           
-          txtime_secs = int(txtime)
-          txtime_fracs = txtime-int(txtime)
+          txtime_secs = int(txtime_final)
+          txtime_fracs = txtime_final-int(txtime_final)
           #print "txtime_secs",txtime_secs,"txtime_fracs",txtime_fracs
           tags_dict = pmt.dict_add(pmt.make_dict(), pmt.intern("tx_time"), pmt.make_tuple(pmt.from_uint64(txtime_secs),pmt.from_double(txtime_fracs)))
           tags_dict = pmt.dict_add(tags_dict, pmt.intern("fn"), pmt.from_uint64(fn))