diff --git a/rowers/dataroutines.py b/rowers/dataroutines.py
index d020faf6..c828d047 100644
--- a/rowers/dataroutines.py
+++ b/rowers/dataroutines.py
@@ -1173,6 +1173,7 @@ parsers = {
 
 
 def get_startdate_time_zone(r, row, startdatetime=None, timezone=''):
+    preserve_timezone = False
     if timezone != '':
         preserve_timezone = True
     if isinstance(startdatetime, str):
diff --git a/rowers/tests/testdata/testdata.tcx.gz b/rowers/tests/testdata/testdata.tcx.gz
index b3805e75..feb1c75c 100644
Binary files a/rowers/tests/testdata/testdata.tcx.gz and b/rowers/tests/testdata/testdata.tcx.gz differ