diff --git a/tracetools_analysis/tracetools_analysis/conversion/ctf.py b/tracetools_analysis/tracetools_analysis/conversion/ctf.py
index c2927db..2f5955e 100644
--- a/tracetools_analysis/tracetools_analysis/conversion/ctf.py
+++ b/tracetools_analysis/tracetools_analysis/conversion/ctf.py
@@ -27,25 +27,15 @@ def ctf_to_pickle(trace_directory: str, target: Pickler) -> int:
     :param target: the target pickle file to write to
     :return: the number of events written
     """
-    # add traces
     print(f'Importing trace directory: {trace_directory}')
     ctf_events = utils._get_trace_ctf_events(trace_directory)
 
     count = 0
     count_written = 0
-    # count_pid_matched = 0
-    # traced = set()
 
-    # PID_KEYS = ['vpid', 'pid']
     for event in ctf_events:
         count += 1
-        # pid = None
-        # for key in PID_KEYS:
-        #     if key in event.keys():
-        #         pid = event[key]
-        #         break
 
-        # Write all for now
         pod = utils.event_to_dict(event)
         target.dump(pod)
         count_written += 1