diff --git a/java/idea-ui/src/com/intellij/openapi/roots/ui/configuration/classpath/ClasspathPanelImpl.java b/java/idea-ui/src/com/intellij/openapi/roots/ui/configuration/classpath/ClasspathPanelImpl.java
index 52b7802daf6e..e132351f1a8e 100644
--- a/java/idea-ui/src/com/intellij/openapi/roots/ui/configuration/classpath/ClasspathPanelImpl.java
+++ b/java/idea-ui/src/com/intellij/openapi/roots/ui/configuration/classpath/ClasspathPanelImpl.java
@@ -184,6 +184,11 @@ public class ClasspathPanelImpl extends JPanel implements ClasspathPanel {
       public void actionPerformed(AnActionEvent e) {
         doEdit();
       }
+
+      @Override
+      public boolean isDumbAware() {
+        return true;
+      }
     };
     add(createTableWithButtons(), BorderLayout.CENTER);