diff --git a/js/id/actions/move_way.js b/js/id/actions/move_way.js
index 0ef14e4f3..ea547cc44 100644
--- a/js/id/actions/move_way.js
+++ b/js/id/actions/move_way.js
@@ -1,11 +1,11 @@
-iD.actions.MoveWay = function(wayId, dxdy, projection) {
+iD.actions.MoveWay = function(wayId, delta, projection) {
     return function(graph) {
         var way = graph.entity(wayId);
 
         _.uniq(way.nodes).forEach(function(id) {
             var node  = graph.entity(id),
                 start = projection(node.loc),
-                end   = projection.invert([start[0] + dxdy[0], start[1] + dxdy[1]]);
+                end   = projection.invert([start[0] + delta[0], start[1] + delta[1]]);
             graph = iD.actions.MoveNode(id, end)(graph);
         });
 
diff --git a/js/id/behavior/drag.js b/js/id/behavior/drag.js
index dc947582c..fefcd2c99 100644
--- a/js/id/behavior/drag.js
+++ b/js/id/behavior/drag.js
@@ -7,7 +7,7 @@
       (https://github.com/mbostock/d3/issues/563)
     * The `start` event is not dispatched until the first cursor movement occurs.
       (https://github.com/mbostock/d3/pull/368)
-    * The `move` event has a `loc` and `dxdy` [x, y] tuple properties rather
+    * The `move` event has a `point` and `delta` [x, y] tuple properties rather
       than `x`, `y`, `dx`, and `dy` properties.
     * The `end` event is not dispatched if no movement occurs.
     * An `off` function is available that unbinds the drag's internal event handlers.
@@ -85,8 +85,8 @@ iD.behavior.drag = function () {
 
             event_({
                 type: "move",
-                loc: [p[0] + offset[0],  p[1] + offset[1]],
-                dxdy: [dx, dy]
+                point: [p[0] + offset[0],  p[1] + offset[1]],
+                delta: [dx, dy]
             });
         }
 
diff --git a/js/id/behavior/drag_accuracy_handle.js b/js/id/behavior/drag_accuracy_handle.js
index 2804739d9..5700f0d04 100644
--- a/js/id/behavior/drag_accuracy_handle.js
+++ b/js/id/behavior/drag_accuracy_handle.js
@@ -16,7 +16,7 @@ iD.behavior.DragAccuracyHandle = function(mode) {
         .on('move', function(d) {
             d3.event.sourceEvent.stopPropagation();
             history.replace(
-                iD.actions.MoveNode(d.node.id, projection.invert(d3.event.loc)));
+                iD.actions.MoveNode(d.node.id, projection.invert(d3.event.point)));
         })
         .on('end', function() {
             history.replace(
diff --git a/js/id/behavior/drag_node.js b/js/id/behavior/drag_node.js
index e39717be1..dbfcb3a62 100644
--- a/js/id/behavior/drag_node.js
+++ b/js/id/behavior/drag_node.js
@@ -14,7 +14,7 @@ iD.behavior.DragNode = function(mode) {
         .on('move', function(entity) {
             d3.event.sourceEvent.stopPropagation();
             history.replace(
-                iD.actions.MoveNode(entity.id, projection.invert(d3.event.loc)));
+                iD.actions.MoveNode(entity.id, projection.invert(d3.event.point)));
         })
         .on('end', function() {
             history.replace(
diff --git a/js/id/behavior/drag_way.js b/js/id/behavior/drag_way.js
index a8669cbe1..e0bff5caf 100644
--- a/js/id/behavior/drag_way.js
+++ b/js/id/behavior/drag_way.js
@@ -14,7 +14,7 @@ iD.behavior.DragWay = function(mode) {
         .on('move', function(entity) {
             d3.event.sourceEvent.stopPropagation();
             history.replace(
-                iD.actions.MoveWay(entity.id, d3.event.dxdy, projection));
+                iD.actions.MoveWay(entity.id, d3.event.delta, projection));
         })
         .on('end', function() {
             history.replace(
diff --git a/test/spec/actions/move_way.js b/test/spec/actions/move_way.js
index 83221e08c..38f191a3c 100644
--- a/test/spec/actions/move_way.js
+++ b/test/spec/actions/move_way.js
@@ -3,9 +3,9 @@ describe("iD.actions.MoveWay", function () {
         var node1  = iD.Node({loc: [0, 0]}),
             node2  = iD.Node({loc: [5, 10]}),
             way    = iD.Way({nodes: [node1.id, node2.id]}),
-            dxdy   = [2, 3],
+            delta  = [2, 3],
             projection = d3.geo.mercator(),
-            graph  = iD.actions.MoveWay(way.id, dxdy, projection)(iD.Graph([node1, node2, way])),
+            graph  = iD.actions.MoveWay(way.id, delta, projection)(iD.Graph([node1, node2, way])),
             loc1   = graph.entity(node1.id).loc,
             loc2   = graph.entity(node2.id).loc;
         expect(loc1[0]).to.be.closeTo( 1.440, 0.001);
@@ -17,9 +17,9 @@ describe("iD.actions.MoveWay", function () {
     it("moves repeated nodes only once", function () {
         var node   = iD.Node({loc: [0, 0]}),
             way    = iD.Way({nodes: [node.id, node.id]}),
-            dxdy   = [2, 3],
+            delta  = [2, 3],
             projection = d3.geo.mercator(),
-            graph  = iD.actions.MoveWay(way.id, dxdy, projection)(iD.Graph([node, way])),
+            graph  = iD.actions.MoveWay(way.id, delta, projection)(iD.Graph([node, way])),
             loc    = graph.entity(node.id).loc;
         expect(loc[0]).to.be.closeTo( 1.440, 0.001);
         expect(loc[1]).to.be.closeTo(-2.159, 0.001);