diff --git a/graphics/ddraw.c b/graphics/ddraw.c
index fd84d10202b..46260a74b2c 100644
--- a/graphics/ddraw.c
+++ b/graphics/ddraw.c
@@ -1995,7 +1995,7 @@ static HRESULT WINAPI DGA_IDirectDraw_SetDisplayMode(
 
 #ifdef HAVE_LIBXXF86VM
         {
-            XF86VidModeModeInfo **all_modes, *vidmode;
+            XF86VidModeModeInfo **all_modes, *vidmode = NULL;
             /* set fullscreen mode */
             /* do we need to save the old video mode and restore it when we exit? */