diff --git a/src/js/_enqueues/admin/plugin-install.js b/src/js/_enqueues/admin/plugin-install.js
index 8f417e5472..df273b48dd 100644
--- a/src/js/_enqueues/admin/plugin-install.js
+++ b/src/js/_enqueues/admin/plugin-install.js
@@ -4,7 +4,7 @@
  * @output wp-admin/js/plugin-install.js
  */
 
-/* global plugininstallL10n, tb_click, tb_remove, tb_position */
+/* global tb_click, tb_remove, tb_position */
 
 jQuery( document ).ready( function( $ ) {
 
@@ -156,7 +156,13 @@ jQuery( document ).ready( function( $ ) {
 	 */
 	$( '.wrap' ).on( 'click', '.thickbox.open-plugin-details-modal', function( e ) {
 		// The `data-title` attribute is used only in the Plugin screens.
-		var title = $( this ).data( 'title' ) ? plugininstallL10n.plugin_information + ' ' + $( this ).data( 'title' ) : plugininstallL10n.plugin_modal_label;
+		var title = $( this ).data( 'title' ) ?
+			wp.i18n.sprintf(
+				// translators: %s: Plugin name.
+				wp.i18n.__( 'Plugin: %s' ),
+				$( this ).data( 'title' )
+			) :
+			wp.i18n.__( 'Plugin details' );
 
 		e.preventDefault();
 		e.stopPropagation();
@@ -170,7 +176,7 @@ jQuery( document ).ready( function( $ ) {
 		tbWindow
 			.attr({
 				'role': 'dialog',
-				'aria-label': plugininstallL10n.plugin_modal_label
+				'aria-label': wp.i18n.__( 'Plugin details' )
 			})
 			.addClass( 'plugin-details-modal' );
 
diff --git a/src/wp-includes/script-loader.php b/src/wp-includes/script-loader.php
index a9dcf930cb..a98c2ed29c 100644
--- a/src/wp-includes/script-loader.php
+++ b/src/wp-includes/script-loader.php
@@ -1260,15 +1260,7 @@ function wp_default_scripts( $scripts ) {
 		$scripts->set_translations( 'inline-edit-tax' );
 
 		$scripts->add( 'plugin-install', "/wp-admin/js/plugin-install$suffix.js", array( 'jquery', 'jquery-ui-core', 'thickbox' ), false, 1 );
-		did_action( 'init' ) && $scripts->localize(
-			'plugin-install',
-			'plugininstallL10n',
-			array(
-				'plugin_information' => __( 'Plugin:' ),
-				'plugin_modal_label' => __( 'Plugin details' ),
-				'ays'                => __( 'Are you sure you want to install this plugin?' ),
-			)
-		);
+		$scripts->set_translations( 'plugin-install' );
 
 		$scripts->add( 'site-health', "/wp-admin/js/site-health$suffix.js", array( 'clipboard', 'jquery', 'wp-util', 'wp-a11y' ), false, 1 );
 		$scripts->set_translations( 'site-health' );