diff --git a/platform/analysis-api/src/com/intellij/codeInsight/completion/CompletionResultSet.java b/platform/analysis-api/src/com/intellij/codeInsight/completion/CompletionResultSet.java
index 7ef6b7645883..7458da8613e1 100644
--- a/platform/analysis-api/src/com/intellij/codeInsight/completion/CompletionResultSet.java
+++ b/platform/analysis-api/src/com/intellij/codeInsight/completion/CompletionResultSet.java
@@ -58,13 +58,13 @@ public abstract class CompletionResultSet implements Consumer<LookupElement> {
 
   public void startBatch() {
     if (myConsumer instanceof BatchConsumer) {
-      ((BatchConsumer)myConsumer).startBatch();
+      ((BatchConsumer<?>)myConsumer).startBatch();
     }
   }
 
   public void endBatch() {
     if (myConsumer instanceof BatchConsumer) {
-      ((BatchConsumer)myConsumer).endBatch();
+      ((BatchConsumer<?>)myConsumer).endBatch();
     }
   }