diff --git a/vllm/multimodal/parse.py b/vllm/multimodal/parse.py
index 1ae2c7408..2fa3f6ebc 100644
--- a/vllm/multimodal/parse.py
+++ b/vllm/multimodal/parse.py
@@ -506,6 +506,11 @@ class MultiModalDataParser:
         for data_item in data_items:
             video, metadata = self._get_video_with_metadata(data_item)
             if self.video_needs_metadata:
+                if metadata is None:
+                    raise ValueError(
+                        "Video metadata is required but not found in mm input. "
+                        "Please check your video input in `multi_modal_data`"
+                    )
                 new_videos.append((video, metadata))
                 metadata_lst.append(metadata)
             else: