diff --git a/sam4onnx/__init__.py b/sam4onnx/__init__.py
index 367383e..534591c 100644
--- a/sam4onnx/__init__.py
+++ b/sam4onnx/__init__.py
@@ -1,3 +1,3 @@
 from sam4onnx.onnx_attr_const_modify import modify, main
 
-__version__ = '1.0.15'
+__version__ = '1.0.16'
diff --git a/sam4onnx/onnx_attr_const_modify.py b/sam4onnx/onnx_attr_const_modify.py
index 70c30da..a32c87f 100644
--- a/sam4onnx/onnx_attr_const_modify.py
+++ b/sam4onnx/onnx_attr_const_modify.py
@@ -64,13 +64,6 @@ class Color:
     'complex128': np.complex128,
 }
 
-ONNX_STANDARD_DOMAINS = [
-    'ai.onnx',
-    'ai.onnx.ml',
-    '',
-]
-
-
 def __subgraph_node_search(
         search_graph: gs.Graph,
         op_name: str,
@@ -292,30 +285,16 @@ def modify(
     if not onnx_graph:
         onnx_graph = onnx.load(input_onnx_file_path)
 
-    # Acquisition of Node with custom domain
-    custom_domain_check_onnx_nodes = []
-    custom_domain_check_onnx_nodes = \
-        custom_domain_check_onnx_nodes + \
-            [
-                node for node in onnx_graph.graph.node \
-                    if node.domain not in ONNX_STANDARD_DOMAINS
-            ]
-
     # domain, ir_version
     domain: str = onnx_graph.domain
     ir_version: int = onnx_graph.ir_version
+    meta_data = {'domain': domain, 'ir_version': ir_version}
+    metadata_props = None
+    if hasattr(onnx_graph, 'metadata_props'):
+        metadata_props = onnx_graph.metadata_props
 
     graph = gs.import_onnx(onnx_graph)
 
-    # Check if Graph contains a custom domain (custom module)
-    contains_custom_domain = len(
-        [
-            domain \
-                for domain in graph.import_domains \
-                    if domain.domain not in ONNX_STANDARD_DOMAINS
-        ]
-    ) > 0
-
     # Search for OPs matching op_name
     node_subject_to_change = None
     if op_name:
@@ -440,7 +419,9 @@ def modify(
 
     # Cleanup
     graph.cleanup().toposort()
-    modified_graph = gs.export_onnx(graph, do_type_check=False, **{'domain': domain, 'ir_version': ir_version})
+    modified_graph = gs.export_onnx(graph, do_type_check=False, **meta_data)
+    if metadata_props is not None:
+        modified_graph.metadata_props.extend(metadata_props)
 
     # Optimize
     new_model = None
@@ -457,14 +438,6 @@ def modify(
             tracetxt = traceback.format_exc().splitlines()[-1]
             print(f'{Color.YELLOW}WARNING:{Color.RESET} {tracetxt}')
 
-    ## Restore a node's custom domain
-    if contains_custom_domain:
-        new_model_nodes = new_model.graph.node
-        for new_model_node in new_model_nodes:
-            for custom_domain_check_onnx_node in custom_domain_check_onnx_nodes:
-                if new_model_node.name == custom_domain_check_onnx_node.name:
-                    new_model_node.domain = custom_domain_check_onnx_node.domain
-
     # Save
     if output_onnx_file_path:
         onnx.save(new_model, f'{output_onnx_file_path}')