diff --git a/pyiron_base/jobs/datamining.py b/pyiron_base/jobs/datamining.py
index 31c67e25c..cac8d65fc 100644
--- a/pyiron_base/jobs/datamining.py
+++ b/pyiron_base/jobs/datamining.py
@@ -649,7 +649,7 @@ def enforce_update(self, enforce):
     def _save_output(self):
         with self.project_hdf5.open("output") as hdf5_output:
             self.pyiron_table._df.to_hdf(
-                hdf5_output.file_name, hdf5_output.h5_path + "/table"
+                hdf5_output.file_name, key=hdf5_output.h5_path + "/table"
             )
 
     def to_hdf(self, hdf=None, group_name=None):