diff --git a/python/ribasim/ribasim/model.py b/python/ribasim/ribasim/model.py
index 5d3eefabb..3ebcfb288 100644
--- a/python/ribasim/ribasim/model.py
+++ b/python/ribasim/ribasim/model.py
@@ -182,6 +182,7 @@ def _save(self, directory: DirectoryPath, input_dir: DirectoryPath):
             sub._save(directory, input_dir)
 
     def set_crs(self, crs: str) -> None:
+        self.crs = crs
         self.edge.df = self.edge.df.set_crs(crs)
         for sub in self._nodes():
             if sub.node.df is not None: