2 files changed, 5 insertions, 4 deletions
diff --git a/sound/softsynth/opl/dosbox.cpp b/sound/softsynth/opl/dosbox.cpp
index 7de66af9f5..29993ce3d8 100644
--- a/sound/softsynth/opl/dosbox.cpp
+++ b/sound/softsynth/opl/dosbox.cpp
@@ -32,6 +32,7 @@
 #ifndef DISABLE_DOSBOX_OPL
 
 #include "dosbox.h"
+#include "dbopl.h"
 
 #include "common/system.h"
 #include "common/scummsys.h"
diff --git a/sound/softsynth/opl/dosbox.h b/sound/softsynth/opl/dosbox.h
index 4018678806..958310611d 100644
--- a/sound/softsynth/opl/dosbox.h
+++ b/sound/softsynth/opl/dosbox.h
@@ -36,13 +36,9 @@
 
 #include "sound/fmopl.h"
 
-#include "dbopl.h"
-
 namespace OPL {
 namespace DOSBox {
 
-class Handler;
-
 struct Timer {
 	double startTime;
 	double delay;
@@ -71,6 +67,10 @@ struct Chip {
 	uint8 read();
 };
 
+namespace DBOPL {
+struct Chip;
+} // end of namespace DBOPL
+
 class OPL : public ::OPL::OPL {
 private:
 	Config::OplType _type;