diff --git a/scripts/src/osd/osdmini.lua b/scripts/src/osd/osdmini.lua
index 803b7413014..0795ccdb4bd 100644
--- a/scripts/src/osd/osdmini.lua
+++ b/scripts/src/osd/osdmini.lua
@@ -79,6 +79,7 @@ project ("osd_" .. _OPTIONS["osd"])
 		MAME_DIR .. "src/osd/modules/sound/coreaudio_sound.cpp",		
 		MAME_DIR .. "src/osd/modules/sound/sdl_sound.cpp",
 		MAME_DIR .. "src/osd/modules/sound/none.cpp",
+		MAME_DIR .. "src/osd/modules/sound/xaudio2_sound.cpp",
 	}
 	
 project ("ocore_" .. _OPTIONS["osd"])
diff --git a/scripts/src/osd/osdmini_cfg.lua b/scripts/src/osd/osdmini_cfg.lua
index ff9539066b2..586075d3cac 100644
--- a/scripts/src/osd/osdmini_cfg.lua
+++ b/scripts/src/osd/osdmini_cfg.lua
@@ -7,4 +7,6 @@ defines {
 	"USE_SDL",
 	"SDLMAME_NOASM=1",
 	"USE_OPENGL=0",
+	"NO_USE_MIDI=1",
+	"USE_XAUDIO2=0",
 }
diff --git a/src/osd/osdmini/minimisc.cpp b/src/osd/osdmini/minimisc.cpp
index 2bf613b0b7c..9891447359b 100644
--- a/src/osd/osdmini/minimisc.cpp
+++ b/src/osd/osdmini/minimisc.cpp
@@ -103,11 +103,9 @@ int osd_setenv(const char *name, const char *value, int overwrite)
 //============================================================
 //  osd_subst_env
 //============================================================
-int osd_subst_env(char **dst, const char *src)
+void osd_subst_env(char **dst, const char *src)
 {
 	*dst = (char *)osd_malloc_array(strlen(src) + 1);
 	if (*dst != nullptr)
 		strcpy(*dst, src);
-
-	return 0;
 }