1 files changed, 5 insertions, 0 deletions
diff --git a/gnu/lib/libdialog/msgbox.c b/gnu/lib/libdialog/msgbox.c
index c56b58b41c8d..e405f3b5a26a 100644
--- a/gnu/lib/libdialog/msgbox.c
+++ b/gnu/lib/libdialog/msgbox.c
@@ -41,6 +41,11 @@ int dialog_msgbox(unsigned char *title, unsigned char *prompt, int height, int w
     draw_shadow(stdscr, y, x, height, width);
 #endif
   dialog = newwin(height, width, y, x);
+  if (dialog == NULL) {
+    endwin();
+    fprintf(stderr, "\nnewwin(%d,%d,%d,%d) failed, maybe wrong dims\n", height,width,y,x);
+    exit(1);
+  }
   keypad(dialog, TRUE);
 
   draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr);