diff --git a/trim.lua b/trim.lua
index 7c22139..08dbd71 100644
--- a/trim.lua
+++ b/trim.lua
@@ -396,8 +396,7 @@ function writeOut()
         "-i", tostring(sourcePath),
         "-t", tostring(trimDuration),
 
-        "-map", "v:0?",
-        "-map", "a:0?",
+        "-map", "v:0",
         "-c", "copy",
 
         strip_metadata ..