diff --git a/lib/CPUs/MIPS/src/core/mips_bui.vhd b/lib/CPUs/MIPS/src/core/mips_bui.vhd
index b1adabe..d5402b0 100644
--- a/lib/CPUs/MIPS/src/core/mips_bui.vhd
+++ b/lib/CPUs/MIPS/src/core/mips_bui.vhd
@@ -306,7 +306,7 @@ bus_state:
 					if mem_rdy = '1' then
 						dmem_mem_out_en	<= '1';
 						if dmem_re = '0' then
-							dmem_ack	<= '1';
+							sn			<= d_bus_finish;
 						else
 							sn			<= d_bus_access;
 						end if;
@@ -341,6 +341,7 @@ bus_state:
 			end if;
 		when d_bus_finish =>
 			if mem_rdy = '1' then
+				dmem_ack	<= '1';
 				sn			<= ready;
 			end if;
 		when others =>