diff --git a/arch/dreamcast/audio.c b/arch/dreamcast/audio.c
index 2233e2738..b7847b0b7 100644
--- a/arch/dreamcast/audio.c
+++ b/arch/dreamcast/audio.c
@@ -25,7 +25,6 @@
 
 #include <kos.h>
 #include <string.h>
-#include "platform.h"
 
 #ifdef CONFIG_AUDIO
 
@@ -57,7 +56,7 @@ static void *dc_audio_thread(void *dud)
 
 void init_audio_platform(struct config_info *conf)
 {
-  audio.buffer_samples = conf->buffer_size / 2;
+  audio.buffer_samples = conf->audio_buffer_samples / 2;
   buffer_size = 4 * audio.buffer_samples;
   audio.mix_buffer = cmalloc(buffer_size * 2);
   sound_buffer = cmalloc(buffer_size);
diff --git a/arch/dreamcast/event.c b/arch/dreamcast/event.c
index 0e7244f27..108d69f0f 100644
--- a/arch/dreamcast/event.c
+++ b/arch/dreamcast/event.c
@@ -36,11 +36,11 @@ void real_warp_mouse(int x, int y)
 {
 }
 
-bool dc_update_input(void);
+boolean dc_update_input(void);
 
-bool __update_event_status(void)
+boolean __update_event_status(void)
 {
-  bool retval = false;
+  boolean retval = false;
   retval |= dc_update_input();
   return retval;
 }
@@ -56,7 +56,7 @@ void __wait_event(int timeout)
 
 // Taken from arch/nds/event.c
 // Send a key up/down event to MZX.
-void do_unicode_key_event(struct buffered_status *status, bool down,
+void do_unicode_key_event(struct buffered_status *status, boolean down,
  enum keycode code, int unicode)
 {
   if(down)
@@ -75,7 +75,7 @@ void do_unicode_key_event(struct buffered_status *status, bool down,
   }
 }
 
-void do_key_event(struct buffered_status *status, bool down,
+void do_key_event(struct buffered_status *status, boolean down,
  enum keycode code)
 {
   do_unicode_key_event(status, down, code,
@@ -83,7 +83,7 @@ void do_key_event(struct buffered_status *status, bool down,
 }
 
 // Send a joystick button up/down event to MZX.
-void do_joybutton_event(struct buffered_status *status, bool down,
+void do_joybutton_event(struct buffered_status *status, boolean down,
  int button)
 {
   // Look up the keycode for this joystick button.
@@ -91,7 +91,7 @@ void do_joybutton_event(struct buffered_status *status, bool down,
   do_key_event(status, down, stuffed_key);
 }
 
-static inline bool check_key(struct buffered_status *status,
+static inline boolean check_key(struct buffered_status *status,
  Uint32 down, Uint32 up, Uint32 key, enum keycode code)
 {
   if(down & key)
@@ -113,7 +113,7 @@ static inline bool check_key(struct buffered_status *status,
   }
 }
 
-static inline bool check_joy(struct buffered_status *status,
+static inline boolean check_joy(struct buffered_status *status,
   Uint32 down, Uint32 up, Uint32 key, Uint32 code)
 {
   if(down & key)
@@ -138,13 +138,13 @@ static inline bool check_joy(struct buffered_status *status,
 static Uint32 last_buttons;
 static Uint32 last_ltrig, last_rtrig;
 
-bool dc_update_input(void)
+boolean dc_update_input(void)
 {
   struct buffered_status *status = store_status();
   maple_device_t *maple_pad, *maple_kbd;
   cont_state_t *pad;
   Uint32 down, held, up;
-  bool retval = false;
+  boolean retval = false;
 
   maple_pad = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
   if (maple_pad && (pad = (cont_state_t*) maple_dev_status(maple_pad))) {
diff --git a/arch/dreamcast/event.h b/arch/dreamcast/event.h
index 70d1fc92a..400dc75ab 100644
--- a/arch/dreamcast/event.h
+++ b/arch/dreamcast/event.h
@@ -24,9 +24,9 @@
 
 #include "../../src/event.h"
 
-void do_unicode_key_event(struct buffered_status *status, bool down,
+void do_unicode_key_event(struct buffered_status *status, boolean down,
  enum keycode code, int unicode);
-void do_key_event(struct buffered_status *status, bool down, enum keycode code);
-void do_joybutton_event(struct buffered_status *status, bool down, int button);
+void do_key_event(struct buffered_status *status, boolean down, enum keycode code);
+void do_joybutton_event(struct buffered_status *status, boolean down, int button);
 
 #endif /* __DREAMCAST_EVENT_H__ */
diff --git a/arch/dreamcast/platform.c b/arch/dreamcast/platform.c
index ef0e64270..f2c82acc7 100644
--- a/arch/dreamcast/platform.c
+++ b/arch/dreamcast/platform.c
@@ -41,7 +41,7 @@ Uint32 get_ticks(void)
   return (Uint32) timer_ms_gettime64();
 }
 
-bool platform_init(void)
+boolean platform_init(void)
 {
   return true;
 }
diff --git a/arch/dreamcast/thread.h b/arch/dreamcast/thread.h
index 137901ebd..b6bcdf600 100644
--- a/arch/dreamcast/thread.h
+++ b/arch/dreamcast/thread.h
@@ -25,6 +25,7 @@
 __M_BEGIN_DECLS
 
 #include <kos.h>
+#include <stdbool.h>
 
 #define THREAD_RES void*
 #define THREAD_RETURN do { return; } while(0)