diff --git a/lib/mx/decoder.cc b/lib/mx/decoder.cc
index 3fe5d7f2..1ba2a286 100644
--- a/lib/mx/decoder.cc
+++ b/lib/mx/decoder.cc
@@ -37,7 +37,7 @@ AbstractDecoder::RecordType MxDecoder::advanceToNextRecord()
         const FluxMatcher* matcher = nullptr;
         _sector->clock = _clock = _fmr->seekToPattern(ID_PATTERN, matcher);
         readRawBits(32); /* skip the ID mark */
-        readRawBits(32); /* skip the track number */
+        _logicalTrack = decodeFmMfm(readRawBits(32)).reader().read_be16();
     }
     else if (_currentSector == 10)
     {
@@ -67,7 +67,7 @@ void MxDecoder::decodeSectorRecord()
         gotChecksum += br.read_le16();
     uint16_t wantChecksum = br.read_le16();
 
-    _sector->logicalTrack = _track->physicalTrack;
+    _sector->logicalTrack = _logicalTrack;
     _sector->logicalSide = _track->physicalSide;
     _sector->logicalSector = _currentSector;
     _sector->data = bytes.slice(0, SECTOR_SIZE);
diff --git a/lib/mx/mx.h b/lib/mx/mx.h
index 8c5fc781..6b7a615f 100644
--- a/lib/mx/mx.h
+++ b/lib/mx/mx.h
@@ -15,6 +15,7 @@ public:
 private:
     nanoseconds_t _clock;
     int _currentSector;
+    int _logicalTrack;
 };
 
 #endif