diff --git a/debug.c b/debug.c
index 6639f04265..fb48e2e1d9 100644
--- a/debug.c
+++ b/debug.c
@@ -1,5 +1,6 @@
-#include <stdarg.h>
 #include "stdafx.h"
+#include <stdio.h>
+#include <stdarg.h>
 #include "ttd.h"
 #include "console.h"
 #include "debug.h"
diff --git a/w32dm2.cpp b/w32dm2.cpp
index b96dc94788..01a0704168 100644
--- a/w32dm2.cpp
+++ b/w32dm2.cpp
@@ -38,6 +38,7 @@
 #endif
 
 #include "ttd.h"
+#include "debug.h"
 #include "sound.h"
 #include "hal.h"
 
diff --git a/win32.c b/win32.c
index c387e58c4d..8066575bdf 100644
--- a/win32.c
+++ b/win32.c
@@ -1,5 +1,6 @@
 #include "stdafx.h"
 #include "ttd.h"
+#include "debug.h"
 #include "table/strings.h"
 #include "gfx.h"
 #include "sound.h"