diff --git a/sound/outputs/openal_out.cpp b/sound/outputs/openal_out.cpp
index 166b104e8..666dbe255 100644
--- a/sound/outputs/openal_out.cpp
+++ b/sound/outputs/openal_out.cpp
@@ -4,8 +4,8 @@
 #include "../../stream/filters/buffer_stream.hpp"
 #include "../../tools/str_exception.hpp"
 
-#include <AL/al.h>
-#include <AL/alc.h>
+#include "al.h"
+#include "alc.h"
 
 using namespace Mangle::Sound;
 
diff --git a/sound/outputs/openal_out.hpp b/sound/outputs/openal_out.hpp
index 1460e4ccc..44d03ecf8 100644
--- a/sound/outputs/openal_out.hpp
+++ b/sound/outputs/openal_out.hpp
@@ -30,8 +30,8 @@ class OpenAL_Factory : public SoundFactory
   OpenAL_Factory(bool doSetup = true);
   ~OpenAL_Factory();
 
-  SoundPtr load(const std::string &file) { assert(0); }
-  SoundPtr load(Stream::StreamPtr input) { assert(0); }
+  SoundPtr load(const std::string &file) { assert(0); return SoundPtr(); }
+  SoundPtr load(Stream::StreamPtr input) { assert(0); return SoundPtr(); }
   SoundPtr loadRaw(SampleSourcePtr input);
 
   void update();