1 files changed, 2 insertions, 2 deletions
diff --git a/src/mongo/db/s/config/configsvr_merge_chunks_command.cpp b/src/mongo/db/s/config/configsvr_merge_chunks_command.cpp
index c794f6714c4..60494a2155f 100644
--- a/src/mongo/db/s/config/configsvr_merge_chunks_command.cpp
+++ b/src/mongo/db/s/config/configsvr_merge_chunks_command.cpp
@@ -94,8 +94,8 @@ public:
                                                                       request().getChunkRange(),
                                                                       request().getShard(),
                                                                       request().getValidAfter()));
-            return ConfigSvrMergeResponse{
-                ChunkVersion::fromBSONThrowing(shardAndCollVers["shardVersion"].Obj())};
+            return ConfigSvrMergeResponse{ChunkVersion::parsePositionalFormat(
+                shardAndCollVers[ChunkVersion::kShardVersionField])};
         }
 
     private: