diff --git a/sys/dev/mfi/mfi.c b/sys/dev/mfi/mfi.c
index f9bfffe8786..470362d5baa 100644
--- a/sys/dev/mfi/mfi.c
+++ b/sys/dev/mfi/mfi.c
@@ -2132,8 +2132,7 @@ mfi_ioctl(struct cdev *dev, u_long cmd, caddr_t arg, int flag, struct thread *td
 
 		if (ioc->mfi_sense_len) {
 			/* get user-space sense ptr then copy out sense */
-			bcopy(&((struct mfi_ioc_packet*)arg)
-			    ->mfi_frame.raw[ioc->mfi_sense_off],
+			bcopy(&ioc->mfi_frame.raw[ioc->mfi_sense_off],
 			    &sense_ptr.sense_ptr_data[0],
 			    sizeof(sense_ptr.sense_ptr_data));
 #ifdef __amd64__