diff --git a/nodes.py b/nodes.py
index a230f725..8d8b153f 100644
--- a/nodes.py
+++ b/nodes.py
@@ -1889,7 +1889,29 @@ NODE_DISPLAY_NAME_MAPPINGS = {
 EXTENSION_WEB_DIRS = {}
 
 
-def load_custom_node(module_path, ignore=set()):
+def get_relative_module_name(module_path: str) -> str:
+    """
+    Returns the module name based on the given module path.
+    Examples:
+        get_module_name("C:/Users/username/ComfyUI/custom_nodes/my_custom_node.py") -> "custom_nodes.my_custom_node"
+        get_module_name("C:/Users/username/ComfyUI/custom_nodes/my_custom_node") -> "custom_nodes.my_custom_node"
+        get_module_name("C:/Users/username/ComfyUI/custom_nodes/my_custom_node/") -> "custom_nodes.my_custom_node"
+        get_module_name("C:/Users/username/ComfyUI/custom_nodes/my_custom_node/__init__.py") -> "custom_nodes.my_custom_node"
+        get_module_name("C:/Users/username/ComfyUI/custom_nodes/my_custom_node/__init__") -> "custom_nodes.my_custom_node"
+        get_module_name("C:/Users/username/ComfyUI/custom_nodes/my_custom_node/__init__/") -> "custom_nodes.my_custom_node"
+        get_module_name("C:/Users/username/ComfyUI/custom_nodes/my_custom_node.disabled") -> "custom_nodes.my
+    Args:
+        module_path (str): The path of the module.
+    Returns:
+        str: The module name.
+    """
+    relative_path = os.path.relpath(module_path, folder_paths.base_path)
+    if os.path.isfile(module_path):
+        relative_path = os.path.splitext(relative_path)[0]
+    return relative_path.replace(os.sep, '.')
+
+
+def load_custom_node(module_path: str, ignore=set()) -> bool:
     module_name = os.path.basename(module_path)
     if os.path.isfile(module_path):
         sp = os.path.splitext(module_path)
@@ -1913,9 +1935,10 @@ def load_custom_node(module_path, ignore=set()):
                 EXTENSION_WEB_DIRS[module_name] = web_dir
 
         if hasattr(module, "NODE_CLASS_MAPPINGS") and getattr(module, "NODE_CLASS_MAPPINGS") is not None:
-            for name in module.NODE_CLASS_MAPPINGS:
+            for name, node_cls in module.NODE_CLASS_MAPPINGS.items():
                 if name not in ignore:
-                    NODE_CLASS_MAPPINGS[name] = module.NODE_CLASS_MAPPINGS[name]
+                    NODE_CLASS_MAPPINGS[name] = node_cls
+                    node_cls.RELATIVE_PYTHON_MODULE = get_relative_module_name(module_path)
             if hasattr(module, "NODE_DISPLAY_NAME_MAPPINGS") and getattr(module, "NODE_DISPLAY_NAME_MAPPINGS") is not None:
                 NODE_DISPLAY_NAME_MAPPINGS.update(module.NODE_DISPLAY_NAME_MAPPINGS)
             return True
diff --git a/server.py b/server.py
index 38b1bab8..ce7c7532 100644
--- a/server.py
+++ b/server.py
@@ -416,6 +416,7 @@ class PromptServer():
             info['name'] = node_class
             info['display_name'] = nodes.NODE_DISPLAY_NAME_MAPPINGS[node_class] if node_class in nodes.NODE_DISPLAY_NAME_MAPPINGS.keys() else node_class
             info['description'] = obj_class.DESCRIPTION if hasattr(obj_class,'DESCRIPTION') else ''
+            info['python_module'] = getattr(obj_class, "RELATIVE_PYTHON_MODULE", "nodes")
             info['category'] = 'sd'
             if hasattr(obj_class, 'OUTPUT_NODE') and obj_class.OUTPUT_NODE == True:
                 info['output_node'] = True