diff --git a/platform/platform-impl/src/com/intellij/ide/plugins/PluginManagerMain.java b/platform/platform-impl/src/com/intellij/ide/plugins/PluginManagerMain.java
index 990d399545ec..850c984771e3 100644
--- a/platform/platform-impl/src/com/intellij/ide/plugins/PluginManagerMain.java
+++ b/platform/platform-impl/src/com/intellij/ide/plugins/PluginManagerMain.java
@@ -608,7 +608,7 @@ public class PluginManagerMain implements Disposable {
     }
 
     public void filter() {
-      if (installedPluginTable.isShowing()) {
+      if (getPluginTable() == installedPluginTable) {
         filter(installedPluginsModel, myFilteredInstalled);
         if (pluginsList != null) {
           installedPluginsModel.modifyData(pluginsList);