diff --git a/programs/regedit/main.h b/programs/regedit/main.h
index 69cdd9461d..c34509527f 100644
--- a/programs/regedit/main.h
+++ b/programs/regedit/main.h
@@ -77,6 +77,8 @@ extern TCHAR szChildClass[];
 /*******************************************************************************
  * Dynamically load all things that depend on user32.dll
  */
+#include <stdarg.h>
+
 #include "windef.h"
 #include "winbase.h"
 #include "wingdi.h"
diff --git a/programs/wineconsole/curses.c b/programs/wineconsole/curses.c
index 951bfdce4b..befb4c25b2 100644
--- a/programs/wineconsole/curses.c
+++ b/programs/wineconsole/curses.c
@@ -33,6 +33,7 @@
 #include "wine/port.h"
 
 #include <stdio.h>
+#include <stdarg.h>
 #include <stdlib.h>
 #ifdef HAVE_CURSES_H
 #include <curses.h>
diff --git a/programs/winedbg/gdbproxy.c b/programs/winedbg/gdbproxy.c
index c8d261994e..54254dfb25 100644
--- a/programs/winedbg/gdbproxy.c
+++ b/programs/winedbg/gdbproxy.c
@@ -31,6 +31,7 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <signal.h>
+#include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/poll.h>
diff --git a/server/registry.c b/server/registry.c
index cf5e7fb967..c090759e10 100644
--- a/server/registry.c
+++ b/server/registry.c
@@ -33,6 +33,7 @@
 #include <fcntl.h>
 #include <limits.h>
 #include <stdio.h>
+#include <stdarg.h>
 #include <string.h>
 #include <stdlib.h>
 #include <sys/stat.h>