diff --git a/core/lib/Drupal/Core/Template/TwigNodeTrans.php b/core/lib/Drupal/Core/Template/TwigNodeTrans.php
index f905f75..e2f8417 100644
--- a/core/lib/Drupal/Core/Template/TwigNodeTrans.php
+++ b/core/lib/Drupal/Core/Template/TwigNodeTrans.php
@@ -153,8 +153,23 @@ protected function compileString(\Twig_NodeInterface $body) {
             $args = $args->getNode('node');
           }
           if ($args instanceof \Twig_Node_Expression_GetAttr) {
-            $argName = $args->getNode('attribute')->getAttribute('value');
-            $expr = $n;
+            $argName = array();
+            // Reuse the incoming expression.
+            $expr = $args;
+            // We need to create a valid argument name but we only have the expression.
+            // Walk through the expression to assemble the correct name.
+            $argName[] = $args->getNode('attribute')->getAttribute('value');
+            while ($args->hasNode('node')) {
+              $args = $args->getNode('node');
+              if ($args instanceof \Twig_Node_Expression_Name) {
+                $argName[] = $args->getAttribute('name');
+              }
+              else {
+                $argName[] = $args->getNode('attribute')->getAttribute('value');
+              }
+            }
+            $argName = array_reverse($argName);
+            $argName = implode('.', $argName);
           }
           else {
             $argName = $n->getAttribute('name');