diff --git a/pandaapp/src/indexify/photo.cxx b/pandaapp/src/indexify/photo.cxx
index c5781575ef..7bf0d2503f 100644
--- a/pandaapp/src/indexify/photo.cxx
+++ b/pandaapp/src/indexify/photo.cxx
@@ -25,7 +25,7 @@ static const char * const standard_movie_extensions[] = {
 };
 
 static const char * const standard_sound_extensions[] = {
-  "jpg", "wav", "ogg", NULL
+  "mp3", "wav", "ogg", NULL
 };