diff --git a/pypesto/select/misc.py b/pypesto/select/misc.py
index 33d35d0d4..ee9e9a5dd 100644
--- a/pypesto/select/misc.py
+++ b/pypesto/select/misc.py
@@ -205,7 +205,7 @@ def __init__(
         if self.save_history and self.tmpdir is None:
             self.tmpdir = Path.cwd() / "sacess_tmpdir"
 
-    def __call__(self, problem: Problem, model_hash: str, **minimize_options):
+    def __call__(self, problem: Problem, model_id: str, **minimize_options):
         """Create then run a problem-specific sacess optimizer."""
         # create optimizer
         ess_init_args = get_default_ess_options(
@@ -215,7 +215,7 @@ def __call__(self, problem: Problem, model_hash: str, **minimize_options):
         for x in ess_init_args:
             x["local_optimizer"] = self.local_optimizer
         if self.tmpdir is not None:
-            model_tmpdir = self.tmpdir / model_hash
+            model_tmpdir = self.tmpdir / model_id
             model_tmpdir.mkdir(exist_ok=False, parents=True)
 
         ess = SacessOptimizer(
diff --git a/pypesto/select/model_problem.py b/pypesto/select/model_problem.py
index 5e5c44bba..b47f932b1 100644
--- a/pypesto/select/model_problem.py
+++ b/pypesto/select/model_problem.py
@@ -149,7 +149,7 @@ def minimize(self) -> Result:
         if isinstance(self.minimize_method, SacessMinimizeMethod):
             return self.minimize_method(
                 self.pypesto_problem,
-                model_hash=self.model.get_hash(),
+                model_id=self.model.model_id,
                 **self.minimize_options,
             )
         return self.minimize_method(