diff --git a/src/Meshing/Mage.py b/src/Meshing/Mage.py
index 8cb59ba8..cd4e577f 100644
--- a/src/Meshing/Mage.py
+++ b/src/Meshing/Mage.py
@@ -302,7 +302,7 @@ class MeshingWithMageMailleurTT(AMeshingTool):
 
         with tempfile.TemporaryDirectory() as tmp:
             logger.debug(f"temp file: {tmp}")
-            st_file = self.export_reach_to_st(reach, "tmp")
+            st_file = self.export_reach_to_st(reach, tmp)
             m_file = st_file.rsplit(".ST", 1)[0] + ".M"
 
             os.sync()