diff --git a/source/src/sound.cpp b/source/src/sound.cpp
index ee97407e..f9dc2a60 100644
--- a/source/src/sound.cpp
+++ b/source/src/sound.cpp
@@ -809,7 +809,6 @@ struct location : sourceowner
 
     void play()
     {
-        ASSERT(!stale);
         if(stale) return;
 
         updatepos();