diff --git a/lldb/source/Commands/CommandObjectHelp.h b/lldb/source/Commands/CommandObjectHelp.h
index f1f87f8..c78682d 100644
--- a/lldb/source/Commands/CommandObjectHelp.h
+++ b/lldb/source/Commands/CommandObjectHelp.h
@@ -30,10 +30,7 @@
 
   ~CommandObjectHelp() override;
 
-  int HandleCompletion(Args &input, int &cursor_index,
-                       int &cursor_char_position, int match_start_point,
-                       int max_return_elements, bool &word_complete,
-                       StringList &matches) override;
+  int HandleCompletion(CompletionRequest &request) override;
 
   static void GenerateAdditionalHelpAvenuesMessage(
       Stream *s, llvm::StringRef command, llvm::StringRef prefix,