diff --git a/src/sound/mpg123_decoder.cpp b/src/sound/mpg123_decoder.cpp
index 27a26c747..f8d946429 100644
--- a/src/sound/mpg123_decoder.cpp
+++ b/src/sound/mpg123_decoder.cpp
@@ -30,10 +30,6 @@
 **---------------------------------------------------------------------------
 **
 */
-#ifdef _WIN32
-#define WIN32_LEAN_AND_MEAN
-#include <windows.h>
-#endif
 
 #include "mpg123_decoder.h"
 #include "files.h"
diff --git a/src/sound/oalsound.cpp b/src/sound/oalsound.cpp
index c2867804d..f0cf6342f 100644
--- a/src/sound/oalsound.cpp
+++ b/src/sound/oalsound.cpp
@@ -32,13 +32,6 @@
 **
 */
 
-#ifdef _WIN32
-#define WIN32_LEAN_AND_MEAN
-#include <windows.h>
-#else
-#include <dlfcn.h>
-#endif
-
 #include <functional>
 #include <memory>
 #include <chrono>
diff --git a/src/sound/sndfile_decoder.cpp b/src/sound/sndfile_decoder.cpp
index a46f0146b..6fa5c5c07 100644
--- a/src/sound/sndfile_decoder.cpp
+++ b/src/sound/sndfile_decoder.cpp
@@ -30,11 +30,6 @@
 **---------------------------------------------------------------------------
 **
 */
-#ifdef _WIN32
-#define WIN32_LEAN_AND_MEAN
-#include <windows.h>
-#endif
-
 #include "sndfile_decoder.h"
 #include "templates.h"
 #include "files.h"
diff --git a/src/win32/win32video.cpp b/src/win32/win32video.cpp
index 5a26a876b..3ef45e6de 100644
--- a/src/win32/win32video.cpp
+++ b/src/win32/win32video.cpp
@@ -820,7 +820,7 @@ void I_SetFPSLimit(int limit)
 		{
 			CloseHandle(FPSLimitEvent);
 			FPSLimitEvent = NULL;
-			Printf("Failed to create FPS limitter timer\n");
+			Printf("Failed to create FPS limiter timer\n");
 			return;
 		}
 		DPrintf(DMSG_NOTIFY, "FPS timer set to %u ms\n", period);