small fixes

[supertux.git] / src / audio / sound_manager.cpp

diff --git a/src/audio/sound_manager.cpp b/src/audio/sound_manager.cpp
index 12e6200..cc10db7 100644 (file)
--- a/src/audio/sound_manager.cpp
+++ b/src/audio/sound_manager.cpp
@@ -24,6 +24,7 @@
 #include <iostream>
 #include <sstream>
 #include <memory>
+#include <assert.h>
 
 #include "sound_file.hpp"
 #include "sound_source.hpp"