diff --git a/A320-main.xml b/A320-main.xml
index 0174f383..6342d3b2 100644
--- a/A320-main.xml
+++ b/A320-main.xml
@@ -45,7 +45,7 @@
 					<ice-inches>0.0</ice-inches>
 					<salvage-control>/controls/deice/windowprobeheat</salvage-control>
 					<sensitivity type="double">0.5</sensitivity>
-					<output-property>/environment/aircraft-effects/frost-level</output-property>
+					<output-property>/environment/aircraft-effects/frost-inch</output-property>
 				</iceable>
 				<iceable>
 					<name>Fuselage</name>
diff --git a/Nasal/Systems/icing.nas b/Nasal/Systems/icing.nas
index 0ad2dc6d..e0bd7ac5 100644
--- a/Nasal/Systems/icing.nas
+++ b/Nasal/Systems/icing.nas
@@ -43,6 +43,11 @@ var environment = {
 	visibLclWx: props.globals.getNode("environment/visibility-m"),
 };
 
+var effects = {
+	frost_inch: props.globals.getNode("environment/aircraft-effects/frost-inch", 1),
+	frost_norm: props.globals.getNode("environment/aircraft-effects/frost-level"),
+};
+
 
 # Icing factor computation.
 var maxSpread = 0;
@@ -166,6 +171,8 @@ var icingModel = func {
 	foreach(iceable; iceables) {
 		iceable.update(factor, melt_factor);
 	}
+
+	effects.frost_norm.setDoubleValue(effects.frost_inch.getValue() * 50);
 	
 	if (WingHasBeenTurnedOff and !wowl and !wowr and GroundModeFinished) {
 		setprop("controls/deice/wing", 1);