diff --git a/src/components/virtual-scroll/virtual-scroll.ts b/src/components/virtual-scroll/virtual-scroll.ts
index 6f3d11bfee..8c0415a067 100644
--- a/src/components/virtual-scroll/virtual-scroll.ts
+++ b/src/components/virtual-scroll/virtual-scroll.ts
@@ -88,7 +88,7 @@ import { VirtualHeader } from './virtual-header';
  * ### Approximate Widths and Heights
  *
  * If the height of items in the virtual scroll are not close to the
- * default size of 40px, it is extremely important to provide an value for
+ * default size of 40px, it is extremely important to provide a value for
  * approxItemHeight height. An exact pixel-perfect size is not necessary,
  * but without an estimate the virtual scroll will not render correctly.
  *