diff --git a/run.py b/run.py
index cc301de..c10bf21 100644
--- a/run.py
+++ b/run.py
@@ -207,7 +207,7 @@
 
     src = boundary_1[0]
     print('src:',src)
-    dst = os.path.join(boundary_outputs_path,filename[-1] + '.csv')
+    dst = os.path.join(boundary_outputs_path,filename[-1] + '.gpkg')
     print('dst,dst')
     shutil.copy(src,dst)