diff --git a/src/browser/Viewport.ts b/src/browser/Viewport.ts
index 1611f54b..c6e8732f 100644
--- a/src/browser/Viewport.ts
+++ b/src/browser/Viewport.ts
@@ -118,7 +118,6 @@ export class Viewport extends Disposable implements IViewport {
   }
 
   private _innerRefresh(): void {
-    debugger;
     if (this._charSizeService.height > 0) {
       this._currentRowHeight = this._renderService.dimensions.device.cell.height / this._coreBrowserService.dpr;
       this._currentDeviceCellHeight = this._renderService.dimensions.device.cell.height;