4 files changed, 5 insertions, 5 deletions
diff --git a/src/sound/cocoa_s.cpp b/src/sound/cocoa_s.cpp
index 3b758ad71..246cbcecf 100644
--- a/src/sound/cocoa_s.cpp
+++ b/src/sound/cocoa_s.cpp
@@ -116,7 +116,7 @@ static const char *CocoaSoundStart(const char * const *parm)
 }
 
 
-static void CocoaSoundStop(void)
+static void CocoaSoundStop()
 {
 	struct AudioUnitInputCallback callback;
 
diff --git a/src/sound/null_s.cpp b/src/sound/null_s.cpp
index e2c5ce2d8..00eab496f 100644
--- a/src/sound/null_s.cpp
+++ b/src/sound/null_s.cpp
@@ -4,7 +4,7 @@
 #include "null_s.h"
 
 static const char *NullSoundStart(const char * const *parm) { return NULL; }
-static void NullSoundStop(void) {}
+static void NullSoundStop() {}
 
 const HalSoundDriver _null_sound_driver = {
 	NullSoundStart,
diff --git a/src/sound/sdl_s.cpp b/src/sound/sdl_s.cpp
index cf6d06981..b90336866 100644
--- a/src/sound/sdl_s.cpp
+++ b/src/sound/sdl_s.cpp
@@ -32,7 +32,7 @@ static const char *SdlSoundStart(const char * const *parm)
 	return NULL;
 }
 
-static void SdlSoundStop(void)
+static void SdlSoundStop()
 {
 	SDL_CALL SDL_CloseAudio();
 	SdlClose(SDL_INIT_AUDIO);
diff --git a/src/sound/win32_s.cpp b/src/sound/win32_s.cpp
index 77d688eb4..61b9ce9eb 100644
--- a/src/sound/win32_s.cpp
+++ b/src/sound/win32_s.cpp
@@ -24,7 +24,7 @@ static void PrepareHeader(WAVEHDR *hdr)
 		error("waveOutPrepareHeader failed");
 }
 
-static void FillHeaders(void)
+static void FillHeaders()
 {
 	WAVEHDR *hdr;
 
@@ -69,7 +69,7 @@ static const char *Win32SoundStart(const char* const* parm)
 	return NULL;
 }
 
-static void Win32SoundStop(void)
+static void Win32SoundStop()
 {
 	HWAVEOUT waveout = _waveout;