diff --git a/src/com/magento/idea/magento2plugin/lang/php/MagentoProxyDeclarationFilter.java b/src/com/magento/idea/magento2plugin/lang/php/MagentoProxyDeclarationFilter.java
index 4469386f1..8a0a3e564 100644
--- a/src/com/magento/idea/magento2plugin/lang/php/MagentoProxyDeclarationFilter.java
+++ b/src/com/magento/idea/magento2plugin/lang/php/MagentoProxyDeclarationFilter.java
@@ -58,7 +58,7 @@ private <E extends PhpNamedElement> boolean isValidFqn(final E candidate) {
         PhpClass targetClass = null;
 
         if (candidate instanceof Method) {
-            targetClass = (PhpClass) candidate.getParent();
+            targetClass = ((Method) candidate).getContainingClass();
         } else if (candidate instanceof PhpClass) {
             targetClass = (PhpClass) candidate;
         }