kill signed warnings
diff --git a/scripts/config/lxdialog/dialog.h b/scripts/config/lxdialog/dialog.h
index cb482a5..c103ecd 100644
--- a/scripts/config/lxdialog/dialog.h
+++ b/scripts/config/lxdialog/dialog.h
@@ -170,7 +170,7 @@
int dialog_checklist (const char *title, const char *prompt, int height,
int width, int list_height, int item_no,
struct dialog_list_item ** items, int flag);
-extern unsigned char dialog_input_result[];
+extern char dialog_input_result[];
int dialog_inputbox (const char *title, const char *prompt, int height,
int width, const char *init);