diff --git a/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/ui/ExternalSystemJdkComboBox.java b/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/ui/ExternalSystemJdkComboBox.java
index 4a1d89817cfd..d2ca6e62157b 100644
--- a/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/ui/ExternalSystemJdkComboBox.java
+++ b/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/ui/ExternalSystemJdkComboBox.java
@@ -156,7 +156,7 @@ public class ExternalSystemJdkComboBox extends ComboBoxWithWidePopup {
                  ));
     }
 
-    if (myProject != null) {
+    if (myProject != null && !myProject.isDisposed()) {
       final Sdk projectSdk = ProjectRootManager.getInstance(myProject).getProjectSdk();
       result.put(ExternalSystemJdkUtil.USE_PROJECT_JDK,
                  new JdkComboBoxItem(