diff --git a/ews/coordinator/processor_base.py b/ews/coordinator/processor_base.py
index 344cb3bd2944ad0c1a92c33bab6d93c3ed55a760..993ccd969fdb8061545fb15164883c53317959c1 100755
--- a/ews/coordinator/processor_base.py
+++ b/ews/coordinator/processor_base.py
@@ -99,7 +99,7 @@ class ProcessorBase:
         )
 
         my_parser.add_argument(
-                '-s', '--start-date', '-i', '--initial-date',
+                '-d', '--run-date',
                 metavar = 'YYYYMMDD',
                 action = 'store',
                 default = self.todayString,