diff --git a/src/core/display/DisplayObject.js b/src/core/display/DisplayObject.js
index 0411e79..8410d61 100644
--- a/src/core/display/DisplayObject.js
+++ b/src/core/display/DisplayObject.js
@@ -175,6 +175,7 @@
 
     /**
      * The coordinate of the object relative to the local coordinates of the parent.
+     * Assignment by value since pixi-v4.
      *
      * @member {PIXI.Point|PIXI.ObservablePoint}
      * @memberof PIXI.DisplayObject#
@@ -185,12 +186,13 @@
             return this.transform.position;
         },
         set: function(value) {
-            this.transform.position = value;
+            this.transform.position.copy(value);
         }
     },
 
     /**
      * The scale factor of the object.
+     * Assignment by value since pixi-v4.
      *
      * @member {PIXI.Point|PIXI.ObservablePoint}
      * @memberof PIXI.DisplayObject#
@@ -200,7 +202,7 @@
             return this.transform.scale;
         },
         set: function(value) {
-            this.transform.scale = value;
+            this.transform.scale.copy(value);
         }
     },
 
@@ -215,12 +217,13 @@
             return this.transform.pivot;
         },
         set: function(value) {
-            this.transform.pivot = value;
+            this.transform.pivot.copy(value);
         }
     },
 
     /**
      * The skew factor for the object in radians.
+     * Assignment by value since pixi-v4.
      *
      * @member {PIXI.ObservablePoint}
      * @memberof PIXI.DisplayObject#
@@ -230,7 +233,7 @@
             return this.transform.skew;
         },
         set: function(value) {
-            this.transform.skew = value;
+            this.transform.skew.copy(value);
         }
     },