diff --git a/os2.c b/os2.c
index 4d3a426765..1e80393637 100644
--- a/os2.c
+++ b/os2.c
@@ -14,10 +14,8 @@
 #include <direct.h>
 #include <unistd.h>
 #include <sys/stat.h>
-#include <stdarg.h>
 #include <stdlib.h>
 #include <process.h>
-#include <ctype.h>
 #include <time.h>
 #include <dos.h>
 
diff --git a/sprite.c b/sprite.c
index 1322a46495..17ff58c0c7 100644
--- a/sprite.c
+++ b/sprite.c
@@ -1,9 +1,6 @@
 /* $Id$ */
 
 #include "stdafx.h"
-
-#include <stdarg.h>
-
 #include "openttd.h"
 #include "sprite.h"
 #include "variables.h"
diff --git a/unix.c b/unix.c
index c6a50b727d..469be3e9ed 100644
--- a/unix.c
+++ b/unix.c
@@ -13,7 +13,6 @@
 #include <unistd.h>
 #include <sys/stat.h>
 #include <time.h>
-#include <pwd.h>
 #include <signal.h>
 #if !defined(__MORPHOS__) && !defined(__AMIGA__)
  #include <pthread.h>