diff --git a/Nasal/string.nas b/Nasal/string.nas
index fe56d646f..b2af4e5f4 100644
--- a/Nasal/string.nas
+++ b/Nasal/string.nas
@@ -380,6 +380,8 @@ var setcolors = func(enabled) {
 #
 var color = func nil;
 setcolors(getprop("/sim/startup/terminal-ansi-colors"));
-_setlistener("/sim/startup/terminal-ansi-colors", func(n) setcolors(n.getBoolValue()));
+_setlistener("/sim/signals/nasal-dir-initialized", func {
+	setlistener("/sim/startup/terminal-ansi-colors", func(n) setcolors(n.getBoolValue()));
+});