diff --git a/T80.vhd b/T80.vhd
index 4b1be4a..a466db6 100644
--- a/T80.vhd
+++ b/T80.vhd
@@ -1236,7 +1236,7 @@ begin
 										IntCycle <= '1';
 										IntE_FF1 <= '0';
 										IntE_FF2 <= '0';
-									elsif (Halt_FF = '1' and INT_s = '1' and Mode = 3) then
+									elsif (Halt_FF = '1' and INT_n = '0' and Mode = 3) then
 										Halt_FF <= '0';
 									end if;
 								else