diff --git a/src/fragments/map-view/components/ors-l-polyline/ors-l-polyline.js b/src/fragments/map-view/components/ors-l-polyline/ors-l-polyline.js
index 900110c5a..27ac318f5 100755
--- a/src/fragments/map-view/components/ors-l-polyline/ors-l-polyline.js
+++ b/src/fragments/map-view/components/ors-l-polyline/ors-l-polyline.js
@@ -160,7 +160,7 @@ export default {
   computed: {
     routeOpacity () {
       let opacity = lodash.get(this.route, 'properties.opacity')
-      if (opacity) {
+      if (lodash.isNumber(opacity)) {
         return opacity
       } else {
         return 0.9