diff --git a/anki/sound.py b/anki/sound.py
index 7dcafb394..ffc6e50fe 100644
--- a/anki/sound.py
+++ b/anki/sound.py
@@ -266,6 +266,7 @@ try:
 
 except ImportError:
     # fall back to old nssound code for 10.3
+    sys.stderr.write("falling back to 10.3 audio library")
 
     try: