diff --git a/platform/lang-impl/src/com/intellij/ui/popup/util/DetailViewImpl.java b/platform/lang-impl/src/com/intellij/ui/popup/util/DetailViewImpl.java
index 6b0f0fbc6c40..c5f37a7a060d 100644
--- a/platform/lang-impl/src/com/intellij/ui/popup/util/DetailViewImpl.java
+++ b/platform/lang-impl/src/com/intellij/ui/popup/util/DetailViewImpl.java
@@ -150,7 +150,7 @@ public class DetailViewImpl extends JPanel implements DetailView, UserDataHolder
       validate();
       getEditor().getScrollingModel().scrollToCaret(ScrollType.CENTER);
 
-      getEditor().setBorder(IdeBorderFactory.createBorder(SideBorder.BOTTOM));
+      getEditor().setBorder(IdeBorderFactory.createBorder(SideBorder.NONE));
 
       clearHightlighting();
       if (lineAttributes != null) {