diff --git a/arm9/source/read_card.c b/arm9/source/read_card.c
index b62d76f..2a30ec4 100644
--- a/arm9/source/read_card.c
+++ b/arm9/source/read_card.c
@@ -438,7 +438,7 @@ void cardRead (u32 src, void* dest)
 		// Read data from secure area
 		tonccpy (dest, (u8*)secureArea + src - CARD_SECURE_AREA_OFFSET, 0x200);
 		return;
-	} else if ((ndsHeader->unitCode != 0) && (src >= ndsHeader->arm9iromOffset) && (src < ndsHeader->arm9iromOffset+MODC_AREA_SIZE)) {
+	} else if ((ndsHeader->unitCode != 0) && (src >= ndsHeader->arm9iromOffset) && (src < ndsHeader->arm9iromOffset+CARD_SECURE_AREA_SIZE)) {
 		// Read data from secure area
 		tonccpy (dest, (u8*)secureArea + src - ndsHeader->arm9iromOffset, 0x200);
 		return;