diff --git a/tir/technologies/webapp_internal.py b/tir/technologies/webapp_internal.py
index dd79e95a..c71a9814 100644
--- a/tir/technologies/webapp_internal.py
+++ b/tir/technologies/webapp_internal.py
@@ -6154,7 +6154,7 @@ def clear_grid(self):
         self.grid_input = []
         self.grid_check = []
 
-    def input_grid_appender(self, column, value, grid_number=0, new=False, row=None, check_value = True, duplicate_fields=[], position=0, ignore_case=True, grid_memo_field):
+    def input_grid_appender(self, column, value, grid_number=0, new=False, row=None, check_value = True, duplicate_fields=[], position=0, ignore_case=True, grid_memo_field=False):
         """
         [Internal]