diff --git a/example/aitf/ancil.py b/example/aitf/ancil.py
index c707cc4b4a1920260ebd9d8d72569b822c47106f..d25ca4fd1b64a9f7191eea4fac17dc68170fd3ba 100644
--- a/example/aitf/ancil.py
+++ b/example/aitf/ancil.py
@@ -55,15 +55,16 @@ SST = csppfetch.Downloader(
 
 class GFSDownloader(csppfetch.Downloader):
     def __init__(self):
-        filename = "gfs.t%Hz.%y%m%d.pgrb2f{priority}"
+        remote_filename = "gfs.t%Hz.%y%m%d.pgrb2f{priority}"
+        local_filename = "gfs.t%Hz.pgrb2f{priority}"
         localdir = "%Y/%m/%d/"
 
         super().__init__(
             name="Global Forecast System",
             package_env_id = PACKAGE_ENV_ID,
             url_base = CSPP_GEO_AITF_URL_BASE,
-            url_relative = CSPP_GEO_AITF_URL_DIR_PART+filename,
-            local = localdir+filename,
+            url_relative = CSPP_GEO_AITF_URL_DIR_PART+remote_filename,
+            local = localdir+local_filename,
             period = dt.timedelta(hours=6),
             epoch_start = dt.datetime(2010,1,1,0,0,0)
             )