diff --git a/web/run.py b/web/run.py
index e5879d8..aaaccd6 100755
--- a/web/run.py
+++ b/web/run.py
@@ -3,7 +3,7 @@ import datetime
 import StringIO
 from math import sqrt
 
-from os import listdir, environ
+from os import listdir, environ, remove as removefile
 from os.path import isfile, join, abspath, dirname
 
 import csv
@@ -351,6 +351,8 @@ def generate_csv_file_if_needed(target_config, started_at, stopped_at):
                                               stopped_at=stopped_at))
             log.info("Generation of '%s' done." % filename)
         except Exception as e:
+            if isfile(local_csv_file):
+                removefile(local_csv_file)
             abort(500, "Failed creating CSV '%s' : %s" % (filename, e))
 
 
--
libgit2 0.21.2