diff --git a/src/arm/Move.go b/src/arm/Move.go
index d5851ec..e1bfcb3 100644
--- a/src/arm/Move.go
+++ b/src/arm/Move.go
@@ -22,16 +22,17 @@ func MoveRegisterNumber(code []byte, destination cpu.Register, number int) []byt
 func MoveRegisterNumberMI(code []byte, destination cpu.Register, number int) []byte {
 	movz := MoveZero(destination, 0, uint16(number))
 	code = binary.LittleEndian.AppendUint32(code, movz)
+	num := uint64(number)
 	halfword := 1
 
 	for {
-		number >>= 16
+		num >>= 16
 
-		if number == 0 {
+		if num == 0 {
 			return code
 		}
 
-		movk := MoveKeep(destination, halfword, uint16(number))
+		movk := MoveKeep(destination, halfword, uint16(num))
 		code = binary.LittleEndian.AppendUint32(code, movk)
 		halfword++
 	}