diff --git a/src/DotNetCore.CAP/Internal/IConsumerServiceSelector.cs b/src/DotNetCore.CAP/Internal/IConsumerServiceSelector.cs
index 3c1dc94..0b53af7 100644
--- a/src/DotNetCore.CAP/Internal/IConsumerServiceSelector.cs
+++ b/src/DotNetCore.CAP/Internal/IConsumerServiceSelector.cs
@@ -22,8 +22,6 @@ namespace DotNetCore.CAP.Internal
         /// </summary>
         /// <param name="key">topic or exchange router key.</param>
         /// <param name="candidates">the set of <see cref="ConsumerExecutorDescriptor" /> candidates.</param>
-        /// <returns></returns>
-        ConsumerExecutorDescriptor
-            SelectBestCandidate(string key, IReadOnlyList<ConsumerExecutorDescriptor> candidates);
+        ConsumerExecutorDescriptor SelectBestCandidate(string key, IReadOnlyList<ConsumerExecutorDescriptor> candidates);
     }
 }
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