diff --git a/js/helpers.js b/js/helpers.js
index 1fe7e46..013f0c4 100644
--- a/js/helpers.js
+++ b/js/helpers.js
@@ -304,6 +304,9 @@ function shipMarker(feature, instance = true){
 		}
 	}
 
+    // retrieve marker / fallback to model 'ship'
+    const marker = markers['marine'][model] || markers['marine']['ship'];
+
 	var altitude = 'water';
 	if(feature.properties.statusLong=='Moored' || feature.properties.statusLong=='At anchor'){
 		altitude='ground';
@@ -323,7 +326,7 @@ function shipMarker(feature, instance = true){
 	}
 
 	let options = { type: scaled ? "scaledShipMarker" : "shipMarker",
-			radius: markers['marine'][model].size[0]/2,
+			radius: marker.size[0]/2,
 			zIndexOffset: parseInt(feature.properties.altitude),
 			fillColor: typeToColor(altitude, feature.properties.type),
 			color: "#000",
@@ -331,7 +334,7 @@ function shipMarker(feature, instance = true){
 			opacity: feature.properties.opacity,
 			fillOpacity: 0.9,
 			rotation: (feature.properties.track != 511 ? feature.properties.track : 0),
-			marker: markers['marine'][model],
+			marker: marker,
 			renderer: vehicleRenderer,
 			bubblingMouseEvents: false,
 			shadowColor: (feature.properties.id == id ? "black" : null),