diff --git a/src/config.c b/src/config.c
index 9aead9a0f..781bdd412 100644
--- a/src/config.c
+++ b/src/config.c
@@ -1587,7 +1587,7 @@ save_general(void)
       else
 	config_set_int(cat, "video_fullscreen_scale", video_fullscreen_scale);
 
-    if (video_fullscreen_first == 0)
+    if (video_fullscreen_first == 1)
 	config_delete_var(cat, "video_fullscreen_first");
       else
 	config_set_int(cat, "video_fullscreen_first", video_fullscreen_first);
diff --git a/src/win/win.c b/src/win/win.c
index 6a2d685ea..9fe724dcd 100644
--- a/src/win/win.c
+++ b/src/win/win.c
@@ -790,8 +790,10 @@ plat_setfullscreen(int on)
     if (on && video_fullscreen) return;
 
     if (on && video_fullscreen_first) {
-	if (ui_msgbox_header(MBX_INFO | MBX_DONTASK, (wchar_t *) IDS_2134, (wchar_t *) IDS_2052) == 10)
+	if (ui_msgbox_header(MBX_INFO | MBX_DONTASK, (wchar_t *) IDS_2134, (wchar_t *) IDS_2052) == 10) {
 		video_fullscreen_first = 0;
+		config_save();
+	}
     }
 
     /* OK, claim the video. */