diff --git a/build/tests/DisplaySystemInformation/ARM9/src/drawFunc.c b/build/tests/DisplaySystemInformation/ARM9/src/drawFunc.c
index 3acba081..26b4d77b 100644
--- a/build/tests/DisplaySystemInformation/ARM9/src/drawFunc.c
+++ b/build/tests/DisplaySystemInformation/ARM9/src/drawFunc.c
@@ -514,12 +514,12 @@ void drawVersion( int idx, int drawLine ,int selected )
 	// お尻4バイトがアプリのフラグ
 	{
 		u64 id = gContentsTitle[idx];
-		char buf[4] = {0};
+		char buf[5] = {0};
 		int i;
 
 		for(i = 3; 0<=i; i-- )
 		{
-			buf[i] = id & 0xFF ;
+			buf[i] = (char)(id & 0xFF) ;
 			id >>= 8;
 		}
 		
diff --git a/build/tests/DisplaySystemInformation/ARM9/src/viewSystemInfo.c b/build/tests/DisplaySystemInformation/ARM9/src/viewSystemInfo.c
index 7b2de48b..cb1e4fa7 100644
--- a/build/tests/DisplaySystemInformation/ARM9/src/viewSystemInfo.c
+++ b/build/tests/DisplaySystemInformation/ARM9/src/viewSystemInfo.c
@@ -443,7 +443,6 @@ void getOtherInfo( void )
 
 	{
 		u64 buf = LCFG_TSD_GetLastTimeBootSoftTitleID();
-		int charIdx;
 		
 		gAllInfo[MENU_OTHER][OTHER_LCFG_LASTBOOT_ID].isAligned = FALSE;
 		gAllInfo[MENU_OTHER][OTHER_LCFG_LASTBOOT_ID].numLines = 2;