diff --git a/source/src/sound.cpp b/source/src/sound.cpp
index 27ebf865..dda85bc0 100644
--- a/source/src/sound.cpp
+++ b/source/src/sound.cpp
@@ -905,7 +905,7 @@ struct sbuffer
     {
         if(!id) return;
         alclearerr();
-        if(alIsBuffer(id)) alDeleteBuffers(1, &id);
+        if(id && alIsBuffer(id)) alDeleteBuffers(1, &id);
         id = 0;
         alerr();
     }