diff --git a/java/java-impl/src/com/intellij/codeInsight/completion/JavaChainLookupElement.java b/java/java-impl/src/com/intellij/codeInsight/completion/JavaChainLookupElement.java
index 4ff8ca2ec5f8..1e25a467f633 100644
--- a/java/java-impl/src/com/intellij/codeInsight/completion/JavaChainLookupElement.java
+++ b/java/java-impl/src/com/intellij/codeInsight/completion/JavaChainLookupElement.java
@@ -112,6 +112,8 @@ public class JavaChainLookupElement extends LookupElementDecorator<LookupElement
     final InsertionContext qualifierContext = CompletionUtil.emulateInsertion(context, context.getStartOffset(), myQualifier);
     OffsetKey oldStart = context.trackOffset(context.getStartOffset(), false);
 
+    PsiDocumentManager.getInstance(context.getProject()).doPostponedOperationsAndUnblockDocument(document);
+
     int start = CharArrayUtil.shiftForward(context.getDocument().getCharsSequence(), context.getStartOffset(), " \t\n");
     if (shouldParenthesizeQualifier(context.getFile(), start, qualifierContext.getTailOffset())) {
       final String space = CodeStyleSettingsManager.getSettings(qualifierContext.getProject()).SPACE_WITHIN_PARENTHESES ? " " : "";