diff --git a/nodes.py b/nodes.py
index 272c2a25e..218f93256 100644
--- a/nodes.py
+++ b/nodes.py
@@ -1006,6 +1006,8 @@ class CLIPVisionLoader:
     def load_clip(self, clip_name):
         clip_path = folder_paths.get_full_path_or_raise("clip_vision", clip_name)
         clip_vision = comfy.clip_vision.load(clip_path)
+        if clip_vision is None:
+            raise RuntimeError("ERROR: clip vision file is invalid and does not contain a valid vision model.")
         return (clip_vision,)
 
 class CLIPVisionEncode: