diff --git a/build/libraries_sysmenu/hotsw/ARM7/include/hotswTypes.h b/build/libraries_sysmenu/hotsw/ARM7/include/hotswTypes.h
index f392d335..d45bfb86 100644
--- a/build/libraries_sysmenu/hotsw/ARM7/include/hotswTypes.h
+++ b/build/libraries_sysmenu/hotsw/ARM7/include/hotswTypes.h
@@ -239,8 +239,6 @@ typedef struct CardBootData{
     u32                 romEmuBuf[ROM_EMULATION_DATA_SIZE/sizeof(u32)];
     u32                 keyBuf[KEY_BUF_SIZE];
 
-    u64                 secureSegNum;
-
     CardTypeEx          cardType;
 
     BootSegmentData     *pBootSegBuf;
diff --git a/build/libraries_sysmenu/hotsw/ARM7/src/hotsw.c b/build/libraries_sysmenu/hotsw/ARM7/src/hotsw.c
index 0ffeb592..2b46603c 100644
--- a/build/libraries_sysmenu/hotsw/ARM7/src/hotsw.c
+++ b/build/libraries_sysmenu/hotsw/ARM7/src/hotsw.c
@@ -233,9 +233,6 @@ BOOL HOTSW_Boot(void)
     
 #endif
     
-	// セキュア領域の読み込みセグメント先頭番号(Segment4 〜 Segment7)
-    s_cbData.secureSegNum = 4;
-
 	// バッファを設定
     s_cbData.pBootSegBuf   = s_pBootSegBuffer;
     s_cbData.pSecureSegBuf = s_pSecureSegBuffer;