diff --git a/package.json b/package.json
index b6b3aa9..871c8f6 100644
--- a/package.json
+++ b/package.json
@@ -12,6 +12,7 @@
     "import": "./dist/chartjs-chart-matrix.esm.js",
     "require": "./dist/chartjs-chart-matrix.min.js"
   },
+  "sideEffects": ["dist/chartjs-chart-matrix.js", "dist/chartjs-chart-matrix-min.js"],
   "scripts": {
     "autobuild": "rollup -c -w",
     "build": "rollup -c",
diff --git a/src/controller.js b/src/controller.js
index 82d8613..32a4d42 100644
--- a/src/controller.js
+++ b/src/controller.js
@@ -2,6 +2,38 @@ import {DatasetController} from 'chart.js';
 import {version} from '../package.json';
 
 export default class MatrixController extends DatasetController {
+
+  static id = 'matrix';
+  static version = version;
+
+  static defaults = {
+    dataElementType: 'matrix',
+
+    animations: {
+      numbers: {
+        type: 'number',
+        properties: ['x', 'y', 'width', 'height']
+      }
+    },
+  };
+
+  static overrides = {
+    interaction: {
+      mode: 'nearest',
+      intersect: true
+    },
+    scales: {
+      x: {
+        type: 'linear',
+        offset: true
+      },
+      y: {
+        type: 'linear',
+        reverse: true
+      }
+    },
+  };
+
   initialize() {
     this.enableOptionSharing = true;
     super.initialize();
@@ -70,36 +102,3 @@ function resolveY(anchorY, y, height) {
   }
   return y - height / 2;
 }
-
-MatrixController.id = 'matrix';
-
-MatrixController.version = version;
-
-MatrixController.defaults = {
-  dataElementType: 'matrix',
-
-  animations: {
-    numbers: {
-      type: 'number',
-      properties: ['x', 'y', 'width', 'height']
-    }
-  },
-};
-
-MatrixController.overrides = {
-  interaction: {
-    mode: 'nearest',
-    intersect: true
-  },
-
-  scales: {
-    x: {
-      type: 'linear',
-      offset: true
-    },
-    y: {
-      type: 'linear',
-      reverse: true
-    }
-  },
-};
diff --git a/src/element.js b/src/element.js
index a89d6e8..8a77178 100644
--- a/src/element.js
+++ b/src/element.js
@@ -71,6 +71,20 @@ function inRange(rect, x, y, useFinalPosition) {
 }
 
 export default class MatrixElement extends Element {
+
+  static id = 'matrix';
+
+  static defaults = {
+    backgroundColor: undefined,
+    borderColor: undefined,
+    borderWidth: undefined,
+    borderRadius: 0,
+    anchorX: 'center',
+    anchorY: 'center',
+    width: 20,
+    height: 20
+  };
+
   constructor(cfg) {
     super();
 
@@ -136,15 +150,3 @@ export default class MatrixElement extends Element {
     return axis === 'x' ? this.width / 2 : this.height / 2;
   }
 }
-
-MatrixElement.id = 'matrix';
-MatrixElement.defaults = {
-  backgroundColor: undefined,
-  borderColor: undefined,
-  borderWidth: undefined,
-  borderRadius: 0,
-  anchorX: 'center',
-  anchorY: 'center',
-  width: 20,
-  height: 20
-};