3 files changed, 10 insertions, 3 deletions
diff --git a/engines/hopkins/hopkins.h b/engines/hopkins/hopkins.h
index b782d103a8..30140baa2e 100644
--- a/engines/hopkins/hopkins.h
+++ b/engines/hopkins/hopkins.h
@@ -48,7 +48,6 @@
 #include "common/util.h"
 #include "engines/engine.h"
 #include "graphics/surface.h"
-#include "gui/debugger.h"
 
 /**
  * This is the namespace of the Hopkins engine.
diff --git a/engines/hopkins/sound.cpp b/engines/hopkins/sound.cpp
index 6660233740..3030636a59 100644
--- a/engines/hopkins/sound.cpp
+++ b/engines/hopkins/sound.cpp
@@ -26,6 +26,8 @@
 #include "hopkins/hopkins.h"
 
 #include "audio/decoders/adpcm_intern.h"
+#include "audio/decoders/wave.h"
+#include "audio/softsynth/pcspk.h"
 #include "common/system.h"
 #include "common/config-manager.h"
 #include "common/file.h"
diff --git a/engines/hopkins/sound.h b/engines/hopkins/sound.h
index 1fb4f9ae71..49c5846198 100644
--- a/engines/hopkins/sound.h
+++ b/engines/hopkins/sound.h
@@ -25,10 +25,16 @@
 
 #include "common/scummsys.h"
 #include "common/str.h"
-#include "audio/audiostream.h"
-#include "audio/decoders/wave.h"
 #include "audio/mixer.h"
 
+namespace Audio {
+class RewindableAudioStream;
+}
+
+namespace Common {
+class SeekableReadStream;
+}
+
 namespace Hopkins {
 
 class VoiceItem {