diff --git a/src/lint/linter/ArcanistXHPASTLinter.php b/src/lint/linter/ArcanistXHPASTLinter.php
--- a/src/lint/linter/ArcanistXHPASTLinter.php
+++ b/src/lint/linter/ArcanistXHPASTLinter.php
@@ -3872,7 +3872,11 @@
           ->selectDescendantsOfType('n_CLASS_STATIC_ACCESS');
 
         foreach ($static_accesses as $static_access) {
-          $called_class = $static_access->getChildOfType(0, 'n_CLASS_NAME');
+          $called_class = $static_access->getChildByIndex(0);
+
+          if ($called_class->getTypeName() != 'n_CLASS_NAME') {
+            continue;
+          }
 
           if ($called_class->getConcreteString() == 'parent') {
             $this->raiseLintAtNode(
diff --git a/src/lint/linter/__tests__/xhpast/no-parent-scope.lint-test b/src/lint/linter/__tests__/xhpast/no-parent-scope.lint-test
--- a/src/lint/linter/__tests__/xhpast/no-parent-scope.lint-test
+++ b/src/lint/linter/__tests__/xhpast/no-parent-scope.lint-test
@@ -10,6 +10,10 @@
   public function __construct() {
     parent::__construct(null);
   }
+
+  public function someMethod($x) {
+    echo $x::SOME_CONSTANT;
+  }
 }
 ~~~~~~~~~~
 error:11:5