4 files changed, 3 insertions, 2 deletions
diff --git a/scumm/imuse_digi/dimuse.cpp b/scumm/imuse_digi/dimuse.cpp
index 036be47137..1f9b702282 100644
--- a/scumm/imuse_digi/dimuse.cpp
+++ b/scumm/imuse_digi/dimuse.cpp
@@ -19,6 +19,7 @@
  */
 
 #include "stdafx.h"
+#include "common/system.h"
 #include "common/timer.h"
 
 #include "scumm/actor.h"
diff --git a/scumm/imuse_digi/dimuse.h b/scumm/imuse_digi/dimuse.h
index eb1e0df68f..dce27f3816 100644
--- a/scumm/imuse_digi/dimuse.h
+++ b/scumm/imuse_digi/dimuse.h
@@ -84,7 +84,7 @@ private:
 
 	Track *_track[MAX_DIGITAL_TRACKS + MAX_DIGITAL_FADETRACKS];
 
-	OSystem::MutexRef _mutex;
+	Common::MutexRef _mutex;
 	ScummEngine *_vm;
 	ImuseDigiSndMgr *_sound;
 
diff --git a/scumm/imuse_digi/dimuse_script.cpp b/scumm/imuse_digi/dimuse_script.cpp
index edef204032..356e004bdb 100644
--- a/scumm/imuse_digi/dimuse_script.cpp
+++ b/scumm/imuse_digi/dimuse_script.cpp
@@ -19,6 +19,7 @@
  */
 
 #include "stdafx.h"
+#include "common/system.h"
 #include "common/timer.h"
 
 #include "scumm/actor.h"
diff --git a/scumm/imuse_digi/dimuse_sndmgr.h b/scumm/imuse_digi/dimuse_sndmgr.h
index 421bcab9eb..3435e256b2 100644
--- a/scumm/imuse_digi/dimuse_sndmgr.h
+++ b/scumm/imuse_digi/dimuse_sndmgr.h
@@ -23,7 +23,6 @@
 
 #include "stdafx.h"
 #include "common/scummsys.h"
-#include "common/system.h"
 #include "scumm/imuse_digi/dimuse_bndmgr.h"
 
 namespace Scumm {