diff --git a/source/vid_wgl.c b/source/vid_wgl.c
index f54c0ba..1c5510e 100644
--- a/source/vid_wgl.c
+++ b/source/vid_wgl.c
@@ -1940,7 +1940,9 @@ void VID_MenuKey (int key)
 void VID_SetCaption (char *text)
 {
 	if (text && *text) {
-		SetWindowText(mainwindow,(LPSTR) va ("%s %s: %s", PROGRAM, VERSION, text));
+		char *temp = strdup (text);
+		SetWindowText(mainwindow,(LPSTR) va ("%s %s: %s", PROGRAM, VERSION, temp));
+		free (temp);
 	} else {
 		SetWindowText(mainwindow,(LPSTR) va ("%s %s", PROGRAM, VERSION));
 	}