diff --git a/src/ol/projection.js b/src/ol/projection.js
index d6c57812a0..7cbf1892f2 100644
--- a/src/ol/projection.js
+++ b/src/ol/projection.js
@@ -354,7 +354,7 @@ ol.Projection.getTransform = function(source, destination) {
       proj4jsDestination = destination;
     } else {
       proj4jsDestination =
-          ol.Projection.getProj4jsProjectionFromCode_(source.getCode());
+          ol.Projection.getProj4jsProjectionFromCode_(destination.getCode());
     }
     var destinationProj4jsProj = proj4jsDestination.getProj4jsProj();
     transform =