diff --git a/java/java-analysis-impl/src/com/intellij/find/findUsages/JavaFindUsagesHelper.java b/java/java-analysis-impl/src/com/intellij/find/findUsages/JavaFindUsagesHelper.java
index 64b795c3b15e..252e6fbe3bc5 100644
--- a/java/java-analysis-impl/src/com/intellij/find/findUsages/JavaFindUsagesHelper.java
+++ b/java/java-analysis-impl/src/com/intellij/find/findUsages/JavaFindUsagesHelper.java
@@ -72,7 +72,7 @@ public class JavaFindUsagesHelper {
         if (qname != null) {
           result.add(qname);
           PsiClass topLevelClass = PsiUtil.getTopLevelClass(element);
-          if (topLevelClass != null) {
+          if (topLevelClass != null && !(topLevelClass instanceof PsiSyntheticClass)) {
             String topName = topLevelClass.getQualifiedName();
             assert topName != null : "topLevelClass : " + topLevelClass + "; element: " + element + " (" + qname + ") top level file: " + InjectedLanguageManager.getInstance(
               element.getProject()).getTopLevelFile(element);