diff --git a/platform/lang-impl/src/com/intellij/codeInsight/documentation/DocumentationComponent.java b/platform/lang-impl/src/com/intellij/codeInsight/documentation/DocumentationComponent.java
index dee65e1dbc28..d82fceddabfe 100644
--- a/platform/lang-impl/src/com/intellij/codeInsight/documentation/DocumentationComponent.java
+++ b/platform/lang-impl/src/com/intellij/codeInsight/documentation/DocumentationComponent.java
@@ -1014,7 +1014,7 @@ public class DocumentationComponent extends JPanel implements Disposable, DataPr
       return null;
     }
 
-    String title = manager.getTitle(element);
+    String title = StringUtil.escapeXmlEntities(manager.getTitle(element));
     if (externalUrl == null) {
       List<String> urls = provider.getUrlFor(element, originalElement);
       if (urls != null) {