diff --git a/docs/components/renderer.md b/docs/components/renderer.md
index 8a3c75d53a0..aa5f5b3ba2a 100644
--- a/docs/components/renderer.md
+++ b/docs/components/renderer.md
@@ -34,8 +34,8 @@ It also configures presentation attributes when entering WebVR/WebXR.
 | foveationLevel          | Amount of foveation used in VR to improve perf, from 0 (min) to 1 (max).        | 1             |
 | sortTransparentObjects | Whether to sort transparent objects (far to near) before rendering | false |
 | physicallyCorrectLights | Whether to use physically-correct light attenuation.                            | false         |
-| maxCanvasWidth          | Maximum canvas width. Uses the size multiplied by device pixel ratio. Does not limit canvas width if set to -1.                                | 1920            |
-| maxCanvasHeight         | Maximum canvas height. Behaves the same as maxCanvasWidth.                      | 1920          |
+| maxCanvasWidth          | Maximum canvas width. Uses the size multiplied by device pixel ratio. Does not limit canvas width if set to -1.                                | -1            |
+| maxCanvasHeight         | Maximum canvas height. Behaves the same as maxCanvasWidth.                      | -1          |
 | multiviewStereo         | Enables the use of the OCULUS_multiview extension.                              | false         |
 | logarithmicDepthBuffer  | Whether to use a logarithmic depth buffer.                                      | auto          |
 | precision               | Fragment shader [precision][precision] : low, medium or high.                   | high          |
diff --git a/src/core/scene/a-scene.js b/src/core/scene/a-scene.js
index 00d90a800e2..fc7eaf2a13f 100644
--- a/src/core/scene/a-scene.js
+++ b/src/core/scene/a-scene.js
@@ -598,7 +598,7 @@ class AScene extends AEntity {
       powerPreference: 'high-performance'
     };
 
-    this.maxCanvasSize = {height: 1920, width: 1920};
+    this.maxCanvasSize = {height: -1, width: -1};
 
     if (this.hasAttribute('renderer')) {
       rendererAttrString = this.getAttribute('renderer');
diff --git a/src/systems/renderer.js b/src/systems/renderer.js
index 97d2eaba9f7..758e2f8410b 100644
--- a/src/systems/renderer.js
+++ b/src/systems/renderer.js
@@ -13,8 +13,8 @@ module.exports.System = registerSystem('renderer', {
     antialias: {default: 'auto', oneOf: ['true', 'false', 'auto']},
     highRefreshRate: {default: utils.device.isOculusBrowser()},
     logarithmicDepthBuffer: {default: 'auto', oneOf: ['true', 'false', 'auto']},
-    maxCanvasWidth: {default: 1920},
-    maxCanvasHeight: {default: 1920},
+    maxCanvasWidth: {default: -1},
+    maxCanvasHeight: {default: -1},
     multiviewStereo: {default: false},
     physicallyCorrectLights: {default: false},
     exposure: {default: 1, if: {toneMapping: ['ACESFilmic', 'linear', 'reinhard', 'cineon']}},