diff --git a/to_nassi.py b/to_nassi.py
index f609eea..dd0aa86 100644
--- a/to_nassi.py
+++ b/to_nassi.py
@@ -2,7 +2,7 @@ from NassiShneidermann import NassiShneidermanDiagram
 from Iinstruction import *
 
 
-def nassi(filepath):
+def nassi(filepath:str ):
     NSD = NassiShneidermanDiagram(False)
     NSD.load_from_file(filepath)
-    NSD.convert_to_image("Nassi-Shneider-Diagramm", 500)
\ No newline at end of file
+    NSD.convert_to_image(filepath + "Nassi-Shneider-Diagramm", 500)
\ No newline at end of file