diff --git a/arm9/src/main.c b/arm9/src/main.c
index 188097f..7c10c7a 100644
--- a/arm9/src/main.c
+++ b/arm9/src/main.c
@@ -16,6 +16,7 @@ enum {
 	MAIN_MENU_TITLES,
 	MAIN_MENU_BACKUP,
 	MAIN_MENU_TEST,
+	MAIN_MENU_FIX,
 	MAIN_MENU_EXIT
 };
 
@@ -60,6 +61,7 @@ static int _mainMenu(int cursor)
 	addMenuItem(m, "Titles", NULL, 0);
 	addMenuItem(m, "Restore", NULL, 0);
 	addMenuItem(m, "Test", NULL, 0);
+	addMenuItem(m, "Fix FAT copy mismatch", NULL, 0);
 	addMenuItem(m, "Shut Down", NULL, 0);
 
 	m->cursor = cursor;
@@ -146,6 +148,11 @@ int main(int argc, char **argv)
 				testMenu();
 				break;
 
+			case MAIN_MENU_FIX:
+				nandio_force_fat_fix();
+				messageBox("Mismatch in FAT copies will be\nfixed on close.\n");
+				break;
+
 			case MAIN_MENU_EXIT:
 				programEnd = true;
 				break;
diff --git a/arm9/src/nand/nandio.c b/arm9/src/nand/nandio.c
index c330b2c..0f0a2ea 100644
--- a/arm9/src/nand/nandio.c
+++ b/arm9/src/nand/nandio.c
@@ -233,3 +233,10 @@ bool nandio_shutdown()
 	crypt_buf = 0;
 	return true;
 }
+
+bool nandio_force_fat_fix()
+{
+	nandWritten = true;
+
+	return true;
+}
diff --git a/arm9/src/nand/nandio.h b/arm9/src/nand/nandio.h
index 75bba11..62c2f90 100644
--- a/arm9/src/nand/nandio.h
+++ b/arm9/src/nand/nandio.h
@@ -22,6 +22,8 @@ void getConsoleID(uint8_t *consoleID) ;
 
 extern bool nandio_shutdown() ;
 
+extern bool nandio_force_fat_fix() ;
+
 #ifdef __cplusplus
 }
 #endif