diff --git a/build/nandfirm/menu-launcher/ARM7/main.c b/build/nandfirm/menu-launcher/ARM7/main.c
index d581c863..89c87dda 100644
--- a/build/nandfirm/menu-launcher/ARM7/main.c
+++ b/build/nandfirm/menu-launcher/ARM7/main.c
@@ -150,7 +150,7 @@ static void PostInit(void)
     /*
         AES関連 (NAND暗号化の鍵変更を含む)
     */
-    if ( !*(u8*)HW_TWL_RED_LAUNCHER_VER )
+    if ( OSi_GetFromFirmAddr()->aes_key[2][0] )
     {
         AESi_PreInitKeys();
     }
diff --git a/build/nandfirm/sdmc-launcher/ARM7/main.c b/build/nandfirm/sdmc-launcher/ARM7/main.c
index a38a9a09..2dc90e9b 100644
--- a/build/nandfirm/sdmc-launcher/ARM7/main.c
+++ b/build/nandfirm/sdmc-launcher/ARM7/main.c
@@ -150,7 +150,7 @@ static void PostInit(void)
     /*
         AES関連 (NAND暗号化の鍵変更を含む)
     */
-    if ( !*(u8*)HW_TWL_RED_LAUNCHER_VER )
+    if ( OSi_GetFromFirmAddr()->aes_key[2][0] )
     {
         AESi_PreInitKeys();
     }