diff --git a/crypto/des/fcrypt_b.c b/crypto/des/fcrypt_b.c
index 83c94054e3ced6ca9e4932c65560ee3ea97043b7..22c87f598368b0edda0d776b4d2e709b1eadec10 100644
--- a/crypto/des/fcrypt_b.c
+++ b/crypto/des/fcrypt_b.c
@@ -97,7 +97,7 @@ void fcrypt_body(DES_LONG *out, des_key_schedule ks, DES_LONG Eswap0,
 
 	for (j=0; j<25; j++)
 		{
-#ifdef DES_UNROLL
+#ifndef DES_UNROLL
 		register int i;
 
 		for (i=0; i<32; i+=8)