diff --git a/platform/analysis-impl/src/com/intellij/openapi/module/impl/scopes/JdkScope.java b/platform/analysis-impl/src/com/intellij/openapi/module/impl/scopes/JdkScope.java
index c01256bd5ebb..d1a2e4ebcede 100644
--- a/platform/analysis-impl/src/com/intellij/openapi/module/impl/scopes/JdkScope.java
+++ b/platform/analysis-impl/src/com/intellij/openapi/module/impl/scopes/JdkScope.java
@@ -32,6 +32,7 @@ public class JdkScope extends LibraryScopeBase {
 
   @Override
   public boolean equals(Object object) {
+    if (object == null) return false;
     if (object == this) return true;
     if (object.getClass() != getClass()) return false;