diff --git a/build/libraries/fs/ARM9/src/fs_loader.c b/build/libraries/fs/ARM9/src/fs_loader.c
index d0f474d9..43a1be84 100644
--- a/build/libraries/fs/ARM9/src/fs_loader.c
+++ b/build/libraries/fs/ARM9/src/fs_loader.c
@@ -92,7 +92,7 @@ static inline BOOL CheckDigest( u8* a, u8* b, BOOL aClr, BOOL bClr )
     if ( bClr ) MI_CpuClear8(b, SVC_SHA1_DIGEST_SIZE);
     return result;
 }
-
+#ifdef SUPPORT_CERTIFICATION
 /*---------------------------------------------------------------------------*
   Name:         CheckRomCertificate
 
@@ -129,7 +129,7 @@ static BOOL CheckRomCertificate( SVCSignHeapContext* pool, const RomCertificate
     // 比較
     return CheckDigest(md, digest, TRUE, TRUE);
 }
-
+#endif
 /*---------------------------------------------------------------------------*
   Name:         FS_LoadBuffer
 
@@ -314,7 +314,7 @@ BOOL FS_LoadHeader( SVCSignHeapContext* pool, const void* rsa_key1, const void*
 
     // 鍵の確定
     rsa_key = (rh->s.titleID_Hi & 0x1) ? rsa_key2 : rsa_key1;
-
+#ifdef SUPPORT_CERTIFICATION
     // コンテンツ証明書
     if ( CheckRomCertificate( pool, &rh->certificate, rsa_key, *(u32*)rh->s.game_code ) )
     {
@@ -324,7 +324,7 @@ BOOL FS_LoadHeader( SVCSignHeapContext* pool, const void* rsa_key1, const void*
     {
         // とりあえずコンテンツ証明書用の鍵がそのまま使えると仮定
     }
-
+#endif
     // ヘッダ署名チェック
     SVC_DecryptSign( pool, &sd, rh->signature, rsa_key );
 
diff --git a/build/libraries/fs/ARM9/src/fs_loader2.c b/build/libraries/fs/ARM9/src/fs_loader2.c
index e5799568..c8f7ae6b 100644
--- a/build/libraries/fs/ARM9/src/fs_loader2.c
+++ b/build/libraries/fs/ARM9/src/fs_loader2.c
@@ -98,7 +98,7 @@ static inline BOOL CheckDigest( u8* a, u8* b, BOOL aClr, BOOL bClr )
     if ( bClr ) MI_CpuClear8(b, SVC_SHA1_DIGEST_SIZE);
     return result;
 }
-
+#ifdef SUPPORT_CERTIFICATION
 /*---------------------------------------------------------------------------*
   Name:         CheckRomCertificate
 
@@ -135,7 +135,7 @@ static BOOL CheckRomCertificate( SVCSignHeapContext* pool, const RomCertificate
     // 比較
     return CheckDigest(md, digest, TRUE, TRUE);
 }
-
+#endif
 static void AesCallback(AESResult result, void* arg)
 {
     volatile BOOL *pBusy = (BOOL*)arg;
@@ -336,7 +336,7 @@ BOOL FS2_LoadHeader( FSFile *pFile, SVCSignHeapContext* pool, const void* rsa_ke
 
     // 鍵の確定
     rsa_key = (rh->s.titleID_Hi & 0x1) ? rsa_key2 : rsa_key1;
-
+#ifdef SUPPORT_CERTIFICATION
     // コンテンツ証明書
     if ( CheckRomCertificate( pool, &rh->certificate, rsa_key, *(u32*)rh->s.game_code ) )
     {
@@ -346,7 +346,7 @@ BOOL FS2_LoadHeader( FSFile *pFile, SVCSignHeapContext* pool, const void* rsa_ke
     {
         // とりあえずコンテンツ証明書用の鍵がそのまま使えると仮定
     }
-
+#endif
     // ヘッダ署名チェック
     SVC_DecryptSign( pool, &sd, rh->signature, rsa_key );