diff --git a/src/experiments/alt-text-generation/components/AltTextControls.tsx b/src/experiments/alt-text-generation/components/AltTextControls.tsx
index b7e5f99d..aa0eb607 100644
--- a/src/experiments/alt-text-generation/components/AltTextControls.tsx
+++ b/src/experiments/alt-text-generation/components/AltTextControls.tsx
@@ -5,18 +5,14 @@
 /**
  * WordPress dependencies
  */
-import {
-	Button,
-	TextareaControl,
-	Spinner,
-	Notice,
-} from '@wordpress/components';
+import { Button, TextareaControl, Notice } from '@wordpress/components';
 import { InspectorControls } from '@wordpress/block-editor';
 import { useState } from '@wordpress/element';
 import { __ } from '@wordpress/i18n';
 import { dispatch, select } from '@wordpress/data';
 import { store as noticesStore } from '@wordpress/notices';
 import { store as editorStore } from '@wordpress/editor';
+import { update } from '@wordpress/icons';
 
 /**
  * Internal dependencies
@@ -215,21 +211,17 @@ export function AltTextControls( {
 				{ /* Generate button */ }
 				{ ! hasGeneratedAlt && ! isDecorative && (
 					<Button
+						className="ai-summarization-plugin-button"
 						variant="secondary"
+						icon={ update }
 						onClick={ handleGenerate }
 						disabled={ isGenerating }
+						isBusy={ isGenerating }
 						style={ { width: '100%', justifyContent: 'center' } }
 					>
-						{ isGenerating ? (
-							<>
-								<Spinner />
-								<span style={ { marginLeft: '8px' } }>
-									{ __( 'Generating…', 'ai' ) }
-								</span>
-							</>
-						) : (
-							getButtonLabel( !! hasExistingAlt )
-						) }
+						{ isGenerating
+							? __( 'Generating…', 'ai' )
+							: getButtonLabel( !! hasExistingAlt ) }
 					</Button>
 				) }
 			</div>