diff --git a/core/modules/rest/src/Plugin/Derivative/EntityDerivative.php b/core/modules/rest/src/Plugin/Derivative/EntityDerivative.php
index f1822c3..9adc340 100644
--- a/core/modules/rest/src/Plugin/Derivative/EntityDerivative.php
+++ b/core/modules/rest/src/Plugin/Derivative/EntityDerivative.php
@@ -114,12 +114,16 @@ public function getDerivativeDefinitions($base_plugin_definition) {
             // @todo remove the try/catch as part of
             // http://drupal.org/node/2281645
             try {
-              if (($collection = $this->routeBuilder->getCollectionDuringRebuild()) && $route = $collection->get($route_name)) {
+              if ($collection = $this->routeBuilder->getCollectionDuringRebuild()) {
+                $route = $collection->get($route_name);
               }
               else {
                 $route = $this->routeProvider->getRouteByName($route_name);
               }
-              $this->derivatives[$entity_type_id]['uri_paths'][$link_relation] = $route->getPath();
+
+              if ($route) {
+                $this->derivatives[$entity_type_id]['uri_paths'][$link_relation] = $route->getPath();
+              }
             }
             catch (RouteNotFoundException $e) {
               // If the route does not exist it means we are in a brittle state