diff --git a/javascript/union.js b/javascript/union.js
index 1e38d208fe5b734cc4dc5653875461a6a431067d..c3cff4469e78038f0769646a380920798b15f355 100644
--- a/javascript/union.js
+++ b/javascript/union.js
@@ -6,12 +6,9 @@ function union() {
     var name = document.getElementById("unionName").value;
 
     // MÃ¥ konverteres fra feature collection til multipolygon:
-    var coords1 = featureCollectionToMultiPolygon(layer1);
-    var coords2 = featureCollectionToMultiPolygon(layer2);
+    var multiPolygon1 = featureCollectionToMultiPolygon(layer1);
+    var multiPolygon2 = featureCollectionToMultiPolygon(layer2);
     
-    var multiPolygon1 = turf.multiPolygon(coords1);
-    var multiPolygon2 = turf.multiPolygon(coords2);
-
     try {
         var union = turf.union(multiPolygon1, multiPolygon2);