diff --git a/audio-manager.rkt b/audio-manager.rkt
index 49e5350..9bce9d3 100644
--- a/audio-manager.rkt
+++ b/audio-manager.rkt
@@ -532,4 +532,4 @@
          (stem4 (string-trim stem3 " ."))
 
          (stem5 (if (string=? stem4 "") "_" stem4)))
-    (string-append stem5 ext)))
+    (string-append (string-trim stem5) (string-trim ext))))