diff --git a/src/FrameSemantics.cc b/src/FrameSemantics.cc
index 6081aac97..be22a114b 100644
--- a/src/FrameSemantics.cc
+++ b/src/FrameSemantics.cc
@@ -313,7 +313,6 @@ Errors buildFrameAttachedToGraph(
 
   const std::string scopeContextName = "__model__";
 
-  auto rootId = ignition::math::graph::kNullId;
   if (_isRoot)
   {
     // The __root__ vertex identifies the scope that contains a root level
@@ -326,7 +325,6 @@ Errors buildFrameAttachedToGraph(
     // more complexity to the validateFrameAttachedToGraph code.
     _out = _out.AddScopeVertex(
         "", "__root__", scopeContextName, sdf::FrameType::STATIC_MODEL);
-    rootId = _out.ScopeVertexId();
   }
 
   const auto modelId = _out.AddVertex(_model->Name(), frameType).Id();
diff --git a/src/World.cc b/src/World.cc
index c19058cef..884413c1e 100644
--- a/src/World.cc
+++ b/src/World.cc
@@ -216,7 +216,7 @@ Errors World::Load(sdf::ElementPtr _sdf, const ParserConfig &_config)
 
   for (const auto &ifaceModelPair : this->dataPtr->interfaceModels)
   {
-    frameNames.insert(ifaceModelPair.second->Name()).second;
+    frameNames.insert(ifaceModelPair.second->Name());
   }
 
   // Load all the physics.