diff --git a/src/soc/amd/stoneyridge/northbridge.c b/src/soc/amd/stoneyridge/northbridge.c
index c5ac90a..2c90d04 100644
--- a/src/soc/amd/stoneyridge/northbridge.c
+++ b/src/soc/amd/stoneyridge/northbridge.c
@@ -530,9 +530,9 @@
 
 	acpigen_write_if_lequal_namestr_int("OSVR", 0x03);
 
-	acpigen_write_store_op_to_namestr(ONE_OP, "NSEN");
-	acpigen_write_store_op_to_namestr(ZERO_OP, "NSDO");
-	acpigen_write_store_op_to_namestr(ZERO_OP, "NSDI");
+	acpigen_write_store_op_to_namestr(ZERO_OP, "NSEN");
+	acpigen_write_store_op_to_namestr(ONE_OP, "NSDO");
+	acpigen_write_store_op_to_namestr(ONE_OP, "NSDI");
 
 	acpigen_pop_len(); /* If */