diff --git a/bin/prepfiles.py b/bin/prepfiles.py
index 522b72217500ff51c2d07f8d6928ba044b14773b..abc1d631123dad5d28c5f587048c667f29bc47a2 100644
--- a/bin/prepfiles.py
+++ b/bin/prepfiles.py
@@ -18,7 +18,6 @@ from geomagio.residual import WebAbsolutesFactory, CalFileFactory
 from geomagio.pcdcp.PCDCPFactory import PCDCPFactory, PCDCP_FILE_PATTERN
 from geomagio.edge.EdgeFactory import EdgeFactory
 
-PCDCP_FILENAME_FORMAT = "{OBSERVATORY}{YEAR}{YEARDAY}"
 CAL_FILENAME_FORMAT = "{OBSERVATORY}{YEAR}PCD.cal"
 
 if len(sys.argv) != 4:
@@ -59,9 +58,6 @@ readings = WebAbsolutesFactory().get_readings(
 
 calfile = CalFileFactory().format_readings(readings=readings)
 
-with open(cal_file_path + filename, "wb") as f:
-    f.write(calfile.encode())
-
 channels = ["H", "E", "Z", "F"]
 
 edge_factory = EdgeFactory()