diff --git a/web-ui/src/main/resources/catalog/components/edit/onlinesrc/OnlineSrcDirective.js b/web-ui/src/main/resources/catalog/components/edit/onlinesrc/OnlineSrcDirective.js
index ec8b4098706..a2bb60fb980 100644
--- a/web-ui/src/main/resources/catalog/components/edit/onlinesrc/OnlineSrcDirective.js
+++ b/web-ui/src/main/resources/catalog/components/edit/onlinesrc/OnlineSrcDirective.js
@@ -678,7 +678,13 @@
                 //   });
                 // }
                 // Add each WMS layer to the map
-                scope.layers = scope.gnCurrentEdit.layerConfig;
+                if (scope.gnCurrentEdit.layerConfig == undefined) {
+                  scope.layers = scope.gnCurrentEdit.layerConfig;
+                } else {
+                  scope.layers = Array.isArray(scope.gnCurrentEdit.layerConfig)
+                    ? scope.gnCurrentEdit.layerConfig
+                    : [scope.gnCurrentEdit.layerConfig];
+                }
                 angular.forEach(scope.gnCurrentEdit.layerConfig, function (layer) {
                   scope.map.addLayer(
                     new ol.layer.Tile({