diff --git a/src/ifcopenshell-python/test/test_sql.py b/src/ifcopenshell-python/test/test_sql.py
index 194bc7cf86..f065b3e824 100644
--- a/src/ifcopenshell-python/test/test_sql.py
+++ b/src/ifcopenshell-python/test/test_sql.py
@@ -17,6 +17,7 @@
 # along with IfcOpenShell.  If not, see <http://www.gnu.org/licenses/>.
 
 import pytest
+import tempfile
 import test.bootstrap
 import ifcopenshell
 import ifcpatch
@@ -29,8 +30,9 @@ SQLITE_PATH = None
 def get_ifc_sqlite() -> ifcopenshell.sqlite:
     global SQLITE_PATH
     if SQLITE_PATH is None:
+        tmp = tempfile.NamedTemporaryFile(delete=False, suffix=".ifcsqlite")
         SQLITE_PATH = ifcpatch.execute(
-            {"file": ifcopenshell.open(TEST_FILE), "recipe": "Ifc2Sql", "arguments": ["sqlite"]}
+            {"file": ifcopenshell.open(TEST_FILE), "recipe": "Ifc2Sql", "arguments": ["sqlite", None, None, None, tmp.name]}
         )
         assert isinstance(SQLITE_PATH, str)
     ifc_sqlite = ifcopenshell.open(SQLITE_PATH)
diff --git a/src/ifcpatch/ifcpatch/recipes/Ifc2Sql.py b/src/ifcpatch/ifcpatch/recipes/Ifc2Sql.py
index de25c3f9ca..04d3cfa6ce 100644
--- a/src/ifcpatch/ifcpatch/recipes/Ifc2Sql.py
+++ b/src/ifcpatch/ifcpatch/recipes/Ifc2Sql.py
@@ -238,7 +238,8 @@ class Patcher:
                     mids = np.array(shape.geometry.material_ids).tobytes()
                     m = json.dumps([m.instance_id() for m in shape.geometry.materials])
                     self.geometry_rows[shape.geometry.id] = [shape.geometry.id, v, e, f, mids, m]
-                m = ifcopenshell.util.shape.get_shape_matrix(shape)
+                # Copy required since otherwise it is read-only
+                m = ifcopenshell.util.shape.get_shape_matrix(shape).copy()
                 m[0][3] /= self.unit_scale
                 m[1][3] /= self.unit_scale
                 m[2][3] /= self.unit_scale