diff --git a/build/sims/imlac b/build/sims/imlac
new file mode 100644
index 00000000..f407cb79
--- /dev/null
+++ b/build/sims/imlac
@@ -0,0 +1,3 @@
+set bootstrap stty
+attach tty file sst21.iml
+go
diff --git a/build/sims/start b/build/sims/start
index 3fd13553..728bc515 100755
--- a/build/sims/start
+++ b/build/sims/start
@@ -24,6 +24,11 @@ gt40() {
     started GT40 "$!"
 }
 
+imlac() {
+    (sleep 3; tools/simlac/imlac/bin/Debug/sImlac.exe build/sims/imlac >imlac.log 2>&1) &
+    started Imlac "$!"
+}
+
 tv11() {
     (sleep 3; tools/tv11/tv11 -p 10011 localhost >tv11.log 2>&1) &
     started TV-11 "$!"