1 files changed, 4 insertions, 6 deletions
diff --git a/src/mongo/db/op_observer_impl.cpp b/src/mongo/db/op_observer_impl.cpp
index acfad92cd8c..8735e82e287 100644
--- a/src/mongo/db/op_observer_impl.cpp
+++ b/src/mongo/db/op_observer_impl.cpp
@@ -347,12 +347,10 @@ void OpObserverImpl::onStartIndexBuildSinglePhase(OperationContext* opCtx,
     // 4. All other cases, we generate a timestamp by writing a no-op oplog entry.  This is
     // better than using a ghost timestamp.  Writing an oplog entry ensures this node is
     // primary.
-    onInternalOpMessage(
-        opCtx,
-        {},
-        boost::none,
-        BSON("msg" << std::string(str::stream() << "Creating indexes. Coll: " << nss)),
-        boost::none);
+    auto msg = BSON("msg"
+                    << "Creating indexes"
+                    << "coll" << nss.ns());
+    onOpMessage(opCtx, msg);
 }
 
 void OpObserverImpl::onCommitIndexBuild(OperationContext* opCtx,