diff --git a/matrix.js b/matrix.js
index 3dcf608..441d97b 100644
--- a/matrix.js
+++ b/matrix.js
@@ -115,7 +115,6 @@
                     this[i][i] = 1;
                 }
             }
-            this.size = 4;
         
             this.identity = function () {
                 var i,
diff --git a/tests/data/text-transform-om.js b/tests/data/text-transform-om.js
index e0eb688..e65128c 100644
--- a/tests/data/text-transform-om.js
+++ b/tests/data/text-transform-om.js
@@ -93,8 +93,7 @@ module.exports = {
 					0,
 					0,
 					1
-				],
-				"size": 4
+				]
 			},
 			"transformTX": 247,
 			"transformTY": 366