diff --git a/plugins/webp-uploads/settings.php b/plugins/webp-uploads/settings.php
index 78cccb2140..e28d4353c8 100644
--- a/plugins/webp-uploads/settings.php
+++ b/plugins/webp-uploads/settings.php
@@ -171,7 +171,10 @@ function webp_uploads_generate_avif_webp_setting_callback(): void {
 	<label for="perflab_modern_image_format">
 		<?php esc_html_e( 'Generate images in this format', 'webp-uploads' ); ?>
 	</label>
-	<p class="description" id="perflab_modern_image_format_description"><?php esc_html_e( 'Select the format to use when generating new images from uploaded images.', 'webp-uploads' ); ?></p>
+	<p class="description" id="perflab_modern_image_format_description">
+		<?php esc_html_e( 'Select the format to use when generating new images from uploaded images.', 'webp-uploads' ); ?>
+		<?php esc_html_e( 'Generated images may be discarded if the modern image format file is larger than the original uploaded image.', 'webp-uploads' ); ?>
+	</p>
 	<?php if ( ! $avif_supported ) : ?>
 		<br />
 		<div class="notice notice-warning inline">