diff --git a/platform/core-impl/src/com/intellij/psi/impl/light/LightElement.java b/platform/core-impl/src/com/intellij/psi/impl/light/LightElement.java
index 000bd8b7ace9..2b42f57377b3 100644
--- a/platform/core-impl/src/com/intellij/psi/impl/light/LightElement.java
+++ b/platform/core-impl/src/com/intellij/psi/impl/light/LightElement.java
@@ -195,4 +195,15 @@ public abstract class LightElement extends PsiElementBase {
     }
     myNavigationElement = navigationElement;
   }
+
+  @Override
+  public PsiElement getPrevSibling() {
+    return null;
+  }
+
+  @Override
+  public PsiElement getNextSibling() {
+    return null;
+  }
+
 }