diff --git a/wp-admin/includes/plugin.php b/wp-admin/includes/plugin.php
index dcad28d90..90b835fb7 100644
--- a/wp-admin/includes/plugin.php
+++ b/wp-admin/includes/plugin.php
@@ -400,6 +400,21 @@ function is_plugin_active( $plugin ) {
 	return in_array( $plugin, (array) get_option( 'active_plugins', array() ) ) || is_plugin_active_for_network( $plugin );
 }
 
+/**
+ * Check whether the plugin is inactive.
+ *
+ * Reverse of is_plugin_active(). Used as a callback.
+ *
+ * @since 3.1.0
+ * @see is_plugin_active()
+ *
+ * @param string $plugin Base plugin path from plugins directory.
+ * @return bool True if inactive. False if active.
+ */
+function is_plugin_inactive( $plugin ) {
+	return ! is_plugin_active( $plugin );
+}
+
 /**
  * Check whether the plugin is active for the entire network.
  *
diff --git a/wp-admin/plugins.php b/wp-admin/plugins.php
index d22ea0cbf..14318074c 100644
--- a/wp-admin/plugins.php
+++ b/wp-admin/plugins.php
@@ -186,7 +186,7 @@ if ( $action ) {
 
 			//$_POST = from the plugin form; $_GET = from the FTP details screen.
 			$plugins = isset( $_REQUEST['checked'] ) ? (array) $_REQUEST['checked'] : array();
-			$plugins = array_filter($plugins, create_function('$plugin', 'return !is_plugin_active($plugin);') ); //Do not allow to delete Activated plugins.
+			$plugins = array_filter($plugins, 'is_plugin_inactive'); // Do not allow to delete Activated plugins.
 			if ( empty($plugins) ) {
 				wp_redirect( self_admin_url("plugins.php?plugin_status=$status&paged=$page&s=$s") );
 				exit;