diff --git a/interpreter/NassiShneidermann.py b/interpreter/NassiShneidermann.py
index 21985f4..7524542 100644
--- a/interpreter/NassiShneidermann.py
+++ b/interpreter/NassiShneidermann.py
@@ -58,9 +58,10 @@ class NassiShneidermanDiagram:
         number_of_item = 1
         for scope in self.function_scopes:
             number_of_item += 1
-            cancel = one_line_progress_meter('Progress', number_of_item, len(self.function_scopes), '-PROGRESSBAR-')
-            if not cancel:
-                return False
+            try:
+                cancel = one_line_progress_meter('Progress', number_of_item, len(self.function_scopes), '-PROGRESSBAR-')
+                if not cancel:
+                    return False
 
             filepath = f"{output_path}/{scope.name}"
             filepath = self.check_conflicts(filepath, on_conflict)