diff --git a/geoapps/driver_base/params.py b/geoapps/driver_base/params.py
index c3413ca2a..e1a2d2c9e 100644
--- a/geoapps/driver_base/params.py
+++ b/geoapps/driver_base/params.py
@@ -280,6 +280,7 @@ def geoh5(self, val):
         if val is None:
             self._geoh5 = val
             return
+
         self.setter_validator(
             "geoh5",
             val,
diff --git a/geoapps/octree_creation/application.py b/geoapps/octree_creation/application.py
index 6c0ee4ff7..277515e12 100644
--- a/geoapps/octree_creation/application.py
+++ b/geoapps/octree_creation/application.py
@@ -236,7 +236,6 @@ def workspace(self, workspace):
         ), f"Workspace must be of class {Workspace}"
         self.base_workspace_changes(workspace)
         self.update_objects_choices()
-        self.params.geoh5 = workspace
 
     def update_objects_choices(self):
         # Refresh the list of objects for all
diff --git a/tests/run_tests/octree_creation_test.py b/tests/run_tests/octree_creation_test.py
index 60885478f..f4eb3d311 100644
--- a/tests/run_tests/octree_creation_test.py
+++ b/tests/run_tests/octree_creation_test.py
@@ -398,3 +398,42 @@ def test_octree_diagonal_balance(
 
         assert (values == np.array(exp_values)).all()
         assert (counts == np.array(exp_counts)).all()
+
+
+def test_app_change_geoh5(tmp_path: Path, setup_test_octree):
+    (
+        cell_sizes,
+        depth_core,
+        horizontal_padding,
+        locations,
+        minimum_level,
+        refinement,
+        _,
+        vertical_padding,
+    ) = setup_test_octree
+
+    with Workspace.create(tmp_path / "testOctree.geoh5") as workspace:
+        points = Points.create(workspace, vertices=locations)
+        refinements = {
+            "Refinement A object": points.uid,
+            "Refinement A levels": refinement,
+            "Refinement A type": "surface",
+            "Refinement B object": None,
+            "minimum_level": minimum_level,
+        }
+        app = OctreeMesh(
+            geoh5=workspace,
+            objects=str(points.uid),
+            u_cell_size=cell_sizes[0],
+            v_cell_size=cell_sizes[1],
+            w_cell_size=cell_sizes[2],
+            horizontal_padding=horizontal_padding,
+            vertical_padding=vertical_padding,
+            diagonal_balance=False,
+            depth_core=depth_core,
+            **refinements,
+        )
+        new_workspace = Workspace.create(tmp_path / "testOctree_new.geoh5")
+        new_workspace.close()
+
+        app.h5file = new_workspace.h5file