diff --git a/src/branch_tier.cpp b/src/branch_tier.cpp
index e2aba21b..a05cc339 100644
--- a/src/branch_tier.cpp
+++ b/src/branch_tier.cpp
@@ -30,7 +30,7 @@ namespace l
     for(auto &path : paths)
       {
         table["path"] = path;
-        branches_.push_back(table);
+        branches_.emplace_back(table);
       }
   }