diff --git a/src/TestUtils.test.ts b/src/TestUtils.test.ts
index 86745fc7..842f30d0 100644
--- a/src/TestUtils.test.ts
+++ b/src/TestUtils.test.ts
@@ -394,7 +394,7 @@ export class MockRenderer implements IRenderer {
   onSelectionChanged(start: [number, number], end: [number, number]): void {}
   onCursorMove(): void {}
   onOptionsChanged(): void {}
-  onWindowResize(devicePixelRatio: number): void {}
+  onDevicePixelRatioChange(): void {}
   clear(): void {}
   renderRows(start: number, end: number): void {}
   registerCharacterJoiner(handler: CharacterJoinerHandler): number { return 0; }
diff --git a/src/renderer/RenderCoordinator.ts b/src/renderer/RenderCoordinator.ts
index 4d051640..d8895bc4 100644
--- a/src/renderer/RenderCoordinator.ts
+++ b/src/renderer/RenderCoordinator.ts
@@ -31,12 +31,12 @@ export class RenderCoordinator extends Disposable {
     this.register(this._renderDebouncer);
 
     this._screenDprMonitor = new ScreenDprMonitor();
-    this._screenDprMonitor.setListener(() => this._renderer.onWindowResize(window.devicePixelRatio));
+    this._screenDprMonitor.setListener(() => this._renderer.onDevicePixelRatioChange());
     this.register(this._screenDprMonitor);
 
     // dprchange should handle this case, we need this as well for browsers that don't support the
     // matchMedia query.
-    this.register(addDisposableDomListener(window, 'resize', () => this._renderer.onWindowResize(window.devicePixelRatio)));
+    this.register(addDisposableDomListener(window, 'resize', () => this._renderer.onDevicePixelRatioChange()));
   }
 
   public refreshRows(start: number, end: number): void {
diff --git a/src/renderer/Renderer.ts b/src/renderer/Renderer.ts
index 754020fd..b941d314 100644
--- a/src/renderer/Renderer.ts
+++ b/src/renderer/Renderer.ts
@@ -76,11 +76,11 @@ export class Renderer extends Disposable implements IRenderer {
     }
   }
 
-  public onWindowResize(devicePixelRatio: number): void {
+  public onDevicePixelRatioChange(): void {
     // If the device pixel ratio changed, the char atlas needs to be regenerated
     // and the terminal needs to refreshed
-    if (this._devicePixelRatio !== devicePixelRatio) {
-      this._devicePixelRatio = devicePixelRatio;
+    if (this._devicePixelRatio !== window.devicePixelRatio) {
+      this._devicePixelRatio = window.devicePixelRatio;
       this.onResize(this._terminal.cols, this._terminal.rows);
     }
   }
diff --git a/src/renderer/Types.ts b/src/renderer/Types.ts
index d08360ef..a72546fb 100644
--- a/src/renderer/Types.ts
+++ b/src/renderer/Types.ts
@@ -29,7 +29,7 @@ export interface IRenderer extends IDisposable {
 
   dispose(): void;
   onThemeChange(colors: IColorSet): void;
-  onWindowResize(devicePixelRatio: number): void;
+  onDevicePixelRatioChange(): void;
   onResize(cols: number, rows: number): void;
   onCharSizeChanged(): void;
   onBlur(): void;
diff --git a/src/renderer/dom/DomRenderer.ts b/src/renderer/dom/DomRenderer.ts
index d1f877e5..1f3b11b8 100644
--- a/src/renderer/dom/DomRenderer.ts
+++ b/src/renderer/dom/DomRenderer.ts
@@ -213,7 +213,7 @@ export class DomRenderer extends Disposable implements IRenderer {
     this._themeStyleElement.innerHTML = styles;
   }
 
-  public onWindowResize(devicePixelRatio: number): void {
+  public onDevicePixelRatioChange(): void {
     this._updateDimensions();
   }