diff --git a/apps/openmw/mwsound/openal_output.cpp b/apps/openmw/mwsound/openal_output.cpp
index a0b9c3a724..c069474034 100644
--- a/apps/openmw/mwsound/openal_output.cpp
+++ b/apps/openmw/mwsound/openal_output.cpp
@@ -10,6 +10,10 @@
 #include "sound.hpp"
 #include "soundmanager.hpp"
 
+#ifndef ALC_ALL_DEVICES_SPECIFIER
+#define ALC_ALL_DEVICES_SPECIFIER 0x1013
+#endif
+
 
 namespace MWSound
 {