diff --git a/platform/lang-impl/src/com/intellij/ui/popup/util/MasterDetailPopupBuilder.java b/platform/lang-impl/src/com/intellij/ui/popup/util/MasterDetailPopupBuilder.java
index de8a4ae7408b..37d4add0c33d 100644
--- a/platform/lang-impl/src/com/intellij/ui/popup/util/MasterDetailPopupBuilder.java
+++ b/platform/lang-impl/src/com/intellij/ui/popup/util/MasterDetailPopupBuilder.java
@@ -60,7 +60,7 @@ public class MasterDetailPopupBuilder {
   private Alarm myUpdateAlarm;
   private JComponent myChooserComponent;
   private ActionToolbar myActionToolbar;
-  private boolean myAddDetailViewToEast;
+  private boolean myAddDetailViewToEast = true;
 
 
   public MasterDetailPopupBuilder setDetailView(DetailView detailView) {