Index: src/scrypt.m
==================================================================
--- src/scrypt.m
+++ src/scrypt.m
@@ -32,11 +32,11 @@
 	uint32_t tmp[16];
 
 	for (uint_fast8_t i = 0; i < 16; i++)
 		tmp[i] = OF_BSWAP32_IF_BE(buffer[i]);
 
-	for (uint_fast8_t i = 0; i < 8; i+= 2) {
+	for (uint_fast8_t i = 0; i < 8; i += 2) {
 		tmp[ 4] ^= OF_ROL(tmp[ 0] + tmp[12],  7);
 		tmp[ 8] ^= OF_ROL(tmp[ 4] + tmp[ 0],  9);
 		tmp[12] ^= OF_ROL(tmp[ 8] + tmp[ 4], 13);
 		tmp[ 0] ^= OF_ROL(tmp[12] + tmp[ 8], 18);
 		tmp[ 9] ^= OF_ROL(tmp[ 5] + tmp[ 1],  7);