diff --git a/Cart_Reader/Cart_Reader.ino b/Cart_Reader/Cart_Reader.ino
index 4a1421a..09a6705 100644
--- a/Cart_Reader/Cart_Reader.ino
+++ b/Cart_Reader/Cart_Reader.ino
@@ -209,7 +209,7 @@ unsigned long sramSize = 0;
 int romType = 0;
 byte saveType;
 word romSize = 0;
-byte numBanks = 128;
+word numBanks = 128;
 char checksumStr[5];
 bool errorLvl = 0;
 byte romVersion = 0;