diff --git a/build/libraries_sysmenu/hotsw/ARM7/src/hotsw.c b/build/libraries_sysmenu/hotsw/ARM7/src/hotsw.c
index 7affe8c6..57bb8816 100644
--- a/build/libraries_sysmenu/hotsw/ARM7/src/hotsw.c
+++ b/build/libraries_sysmenu/hotsw/ARM7/src/hotsw.c
@@ -2128,7 +2128,7 @@ static void ClearAllCardRegister(void)
     reg_HOTSW_MCSCR2 = REGCLEAR_32;
 
     // Slot Status,SWP‚ðƒNƒŠƒA [d15-d0 Slot Status,SWP]
-    reg_MI_MC1 = REGCLEAR_16;
+    reg_MI_MC1 &= REG_MI_MC1_CC_MASK;
 }