diff --git a/samples/analyze/beta_snippets.py b/samples/analyze/beta_snippets.py
index 05f3741e..33d221ce 100644
--- a/samples/analyze/beta_snippets.py
+++ b/samples/analyze/beta_snippets.py
@@ -62,7 +62,7 @@ def speech_transcription(input_uri):
     )
 
     operation = video_client.annotate_video(
-        input_uri, features=features, video_context=video_context
+        input_uri=input_uri, features=features, video_context=video_context
     )
 
     print("\nProcessing video for speech transcription.")