diff --git a/libvo/vo_direct3d.c b/libvo/vo_direct3d.c
index 1958fb45ca..4e3dc875cb 100644
--- a/libvo/vo_direct3d.c
+++ b/libvo/vo_direct3d.c
@@ -549,7 +549,7 @@ static int preinit(const char *arg)
 /** @brief libvo Callback: Handle control requests.
  *  @return VO_TRUE on success, VO_NOTIMPL when not implemented
  */
-static int control(uint32_t request, void *data, ...)
+static int control(uint32_t request, void *data)
 {
     switch (request) {
     case VOCTRL_QUERY_FORMAT:
diff --git a/libvo/w32_common.c b/libvo/w32_common.c
index fd1fe5c36b..7f25182387 100644
--- a/libvo/w32_common.c
+++ b/libvo/w32_common.c
@@ -3,6 +3,8 @@
 #include <windows.h>
 #include <windowsx.h>
 
+// To get "#define vo_ontop global_vo->opts->vo_ontop" etc
+#include "old_vo_defines.h"
 #include "osdep/keycodes.h"
 #include "input/input.h"
 #include "input/mouse.h"
@@ -11,8 +13,6 @@
 #include "aspect.h"
 #include "w32_common.h"
 #include "mp_fifo.h"
-// To get "#define vo_ontop global_vo->opts->vo_ontop" etc
-#include "old_vo_defines.h"
 
 extern int enable_mouse_movements;