diff --git a/platform/lang-impl/src/com/intellij/find/actions/ShowUsagesAction.java b/platform/lang-impl/src/com/intellij/find/actions/ShowUsagesAction.java
index c0409bd69e5d..839c31df7ebd 100644
--- a/platform/lang-impl/src/com/intellij/find/actions/ShowUsagesAction.java
+++ b/platform/lang-impl/src/com/intellij/find/actions/ShowUsagesAction.java
@@ -103,7 +103,7 @@ import static com.intellij.find.actions.ShowUsagesActionHandler.getSecondInvocat
 import static com.intellij.find.findUsages.FindUsagesHandlerFactory.OperationMode.USAGES_WITH_DEFAULT_OPTIONS;
 import static org.jetbrains.annotations.Nls.Capitalization.Sentence;
 
-public class ShowUsagesAction extends AnAction implements PopupAction, HintManagerImpl.ActionToIgnore {
+public class ShowUsagesAction extends AnAction implements PopupAction, HintManagerImpl.ActionToIgnore, UpdateInBackground {
   public static final String ID = "ShowUsages";
   private static final String DIMENSION_SERVICE_KEY = "ShowUsagesActions.dimensionServiceKey";
   private static final String SPLITTER_SERVICE_KEY = "ShowUsagesActions.splitterServiceKey";