diff --git a/src/browser/renderer/dom/WidthCache.ts b/src/browser/renderer/dom/WidthCache.ts
index 5f333161..01b3f658 100644
--- a/src/browser/renderer/dom/WidthCache.ts
+++ b/src/browser/renderer/dom/WidthCache.ts
@@ -152,6 +152,6 @@ export class WidthCache implements IDisposable {
   protected _measure(c: string, variant: FontVariant): number {
     const el = this._measureElements[variant];
     el.textContent = c.repeat(WidthCacheSettings.REPEAT);
-    return el.getBoundingClientRect().width / WidthCacheSettings.REPEAT;
+    return el.offsetWidth / WidthCacheSettings.REPEAT;
   }
 }