diff --git a/nodes.py b/nodes.py
index df40f809..ce090f40 100644
--- a/nodes.py
+++ b/nodes.py
@@ -1779,6 +1779,7 @@ NODE_DISPLAY_NAME_MAPPINGS = {
 }
 
 EXTENSION_WEB_DIRS = {}
+EXTENSION_STYLE_DIRS = {}
 
 def load_custom_node(module_path, ignore=set()):
     module_name = os.path.basename(module_path)
@@ -1797,6 +1798,11 @@ def load_custom_node(module_path, ignore=set()):
         sys.modules[module_name] = module
         module_spec.loader.exec_module(module)
 
+        if hasattr(module, "STYLE_DIRECTORY") and getattr(module, "STYLE_DIRECTORY") is not None:
+            style_dir = os.path.abspath(os.path.join(module_dir, getattr(module, "STYLE_DIRECTORY")))
+            if os.path.isdir(style_dir):
+                EXTENSION_STYLE_DIRS[module_name] = style_dir
+
         if hasattr(module, "WEB_DIRECTORY") and getattr(module, "WEB_DIRECTORY") is not None:
             web_dir = os.path.abspath(os.path.join(module_dir, getattr(module, "WEB_DIRECTORY")))
             if os.path.isdir(web_dir):