Index: src/wp-admin/includes/class-wp-plugins-list-table.php
===================================================================
--- src/wp-admin/includes/class-wp-plugins-list-table.php	(revision 31764)
+++ src/wp-admin/includes/class-wp-plugins-list-table.php	(working copy)
@@ -515,7 +515,11 @@
 		if ( ! empty( $totals['upgrade'] ) && ! empty( $plugin_data['update'] ) )
 			$class .= ' update';
 
-		echo "<tr id='$id' class='$class'>";
+		printf( "<tr id='%s' class='%s' data-slug='%s'>",
+			$id,
+			$class,
+			$plugin_data['slug']
+		);
 
 		list( $columns, $hidden ) = $this->get_column_info();
 
Index: src/wp-admin/js/updates.js
===================================================================
--- src/wp-admin/js/updates.js	(revision 31764)
+++ src/wp-admin/js/updates.js	(working copy)
@@ -100,7 +100,7 @@
 	wp.updates.updatePlugin = function( plugin, slug ) {
 		var $message;
 		if ( 'plugins' === pagenow || 'plugins-network' === pagenow ) {
-			$message = $( '#' + slug ).next().find( '.update-message' );
+			$message = $( '[data-slug="' + slug + '"]' ).next().find( '.update-message' );
 		} else if ( 'plugin-install' === pagenow ) {
 			$message = $( '.plugin-card-' + slug ).find( '.update-now' );
 		}
@@ -142,18 +142,19 @@
 	 * @param {object} response
 	 */
 	wp.updates.updateSuccess = function( response ) {
-		var $message;
+		var $updateMessage;
 		if ( 'plugins' === pagenow || 'plugins-network' === pagenow ) {
-			$message = $( '#' + response.slug ).next().find( '.update-message' );
-			$( '#' + response.slug ).addClass( 'updated' ).removeClass( 'update' );
+			var $pluginRow = $( '[data-slug="' + response.slug + '"]' );
+			$updateMessage = $pluginRow.next().find( '.update-message' );
+			$pluginRow.addClass( 'updated' ).removeClass( 'update' );
 			$( '#' + response.slug + '-update' ).addClass( 'updated' ).removeClass( 'update' );
 		} else if ( 'plugin-install' === pagenow ) {
-			$message = $( '.plugin-card-' + response.slug ).find( '.update-now' );
-			$message.addClass( 'button-disabled' );
+			$updateMessage = $( '.plugin-card-' + response.slug ).find( '.update-now' );
+			$updateMessage.addClass( 'button-disabled' );
 		}
 
-		$message.removeClass( 'updating-message' ).addClass( 'updated-message' );
-		$message.text( wp.updates.l10n.updated );
+		$updateMessage.removeClass( 'updating-message' ).addClass( 'updated-message' );
+		$updateMessage.text( wp.updates.l10n.updated );
 		wp.a11y.speak( wp.updates.l10n.updatedMsg );
 
 		wp.updates.decrementCount( 'plugin' );
@@ -169,7 +170,7 @@
 	wp.updates.updateError = function( response ) {
 		var $message;
 		if ( 'plugins' === pagenow || 'plugins-network' === pagenow ) {
-			$message = $( '#' + response.slug ).next().find( '.update-message' );
+			$message = $( '[data-slug="' + response.slug + '"]' ).next().find( '.update-message' );
 		} else if ( 'plugin-install' === pagenow ) {
 			$message = $( '.plugin-card-' + response.slug ).find( '.update-now' );
 		}