diff --git a/sys/boot/sparc64/loader/main.c b/sys/boot/sparc64/loader/main.c
index 3a899a862e0f..a9f641ea129d 100644
--- a/sys/boot/sparc64/loader/main.c
+++ b/sys/boot/sparc64/loader/main.c
@@ -261,7 +261,6 @@ static int
 sparc64_autoload(void)
 {
 
-	setenv("hw.ata.atapi_dma", "0", 0);
 	return (0);
 }