diff --git a/addons/addon-clipboard/typings/addon-clipboard.d.ts b/addons/addon-clipboard/typings/addon-clipboard.d.ts
index f8e024ac3..f5a892e21 100644
--- a/addons/addon-clipboard/typings/addon-clipboard.d.ts
+++ b/addons/addon-clipboard/typings/addon-clipboard.d.ts
@@ -82,7 +82,7 @@ declare module '@xterm/addon-clipboard' {
   /**
    * The clipboard provider interface that enables xterm.js to access the browser clipboard.
    *
-   * Note this this clipboard provider does not implement own cut buffers as xterm does,
+   * Note that this clipboard provider does not implement own cut buffers as xterm does,
    * but redirect the selection parameter always to navigator.clipboard.
    */
   export class BrowserClipboardProvider implements IClipboardProvider{
diff --git a/addons/addon-webgl/typings/addon-webgl.d.ts b/addons/addon-webgl/typings/addon-webgl.d.ts
index 37b6b8a95..37acbb8a9 100644
--- a/addons/addon-webgl/typings/addon-webgl.d.ts
+++ b/addons/addon-webgl/typings/addon-webgl.d.ts
@@ -23,12 +23,12 @@ declare module '@xterm/addon-webgl' {
     public readonly onChangeTextureAtlas: IEvent<HTMLCanvasElement>;
 
     /**
-     * An event that is fired when the a new page is added to the texture atlas.
+     * An event that is fired when a new page is added to the texture atlas.
      */
     public readonly onAddTextureAtlasCanvas: IEvent<HTMLCanvasElement>;
 
     /**
-     * An event that is fired when the a page is removed from the texture atlas.
+     * An event that is fired when a page is removed from the texture atlas.
      */
     public readonly onRemoveTextureAtlasCanvas: IEvent<HTMLCanvasElement>;