diff --git a/plugins/InspectionGadgets/InspectionGadgetsAnalysis/src/com/siyeh/ig/finalization/FinalizeNotProtectedInspection.java b/plugins/InspectionGadgets/InspectionGadgetsAnalysis/src/com/siyeh/ig/finalization/FinalizeNotProtectedInspection.java
index 78478e362f8b..1a740ce0dde3 100644
--- a/plugins/InspectionGadgets/InspectionGadgetsAnalysis/src/com/siyeh/ig/finalization/FinalizeNotProtectedInspection.java
+++ b/plugins/InspectionGadgets/InspectionGadgetsAnalysis/src/com/siyeh/ig/finalization/FinalizeNotProtectedInspection.java
@@ -18,7 +18,6 @@ package com.siyeh.ig.finalization;
 import com.intellij.codeInspection.ProblemDescriptor;
 import com.intellij.openapi.project.Project;
 import com.intellij.psi.*;
-import com.intellij.util.IncorrectOperationException;
 import com.siyeh.HardcodedMethodConstants;
 import com.siyeh.InspectionGadgetsBundle;
 import com.siyeh.ig.BaseInspection;
@@ -92,6 +91,10 @@ public class FinalizeNotProtectedInspection extends BaseInspection {
       if (method.hasModifierProperty(PsiModifier.PROTECTED)) {
         return;
       }
+      final PsiClass aClass = method.getContainingClass();
+      if (aClass == null || aClass.isInterface()) {
+        return;
+      }
       registerMethodError(method);
     }
   }