diff --git a/examples/glview/CMakeLists.txt b/examples/glview/CMakeLists.txt
index 982bb6c..a91dc14 100644
--- a/examples/glview/CMakeLists.txt
+++ b/examples/glview/CMakeLists.txt
@@ -45,6 +45,7 @@ include_directories(
 
 add_executable(glview
   glview.cc
+  ../../json11.cpp
   ../common/trackball.cc
   )
 
diff --git a/examples/glview/glview.cc b/examples/glview/glview.cc
index b2a3d70..0274594 100644
--- a/examples/glview/glview.cc
+++ b/examples/glview/glview.cc
@@ -678,13 +678,13 @@ static void DrawNode(tinygltf::Model &model, const tinygltf::Node &node) {
   // FIXME(syoyo): Refactor.
   // DrawCurves(scene, it->second);
   if (node.mesh > -1) {
-    assert(node.mesh < model.meshes.size());
+    assert(node.mesh < int(model.meshes.size()));
     DrawMesh(model, model.meshes[node.mesh]);
   }
 
   // Draw child nodes.
   for (size_t i = 0; i < node.children.size(); i++) {
-    assert(node.children[i] < model.nodes.size());
+    assert(node.children[i] < int(model.nodes.size()));
     DrawNode(model, model.nodes[node.children[i]]);
   }
 
diff --git a/examples/glview/premake5.lua b/examples/glview/premake5.lua
index 938d008..fd04ab9 100644
--- a/examples/glview/premake5.lua
+++ b/examples/glview/premake5.lua
@@ -8,7 +8,7 @@ solution "glview"
       kind "ConsoleApp"
       language "C++"
 	  cppdialect "C++11"
-      files { "glview.cc", "../common/trackball.cc" }
+      files { "glview.cc", "../../json11.cpp", "../common/trackball.cc" }
       includedirs { "./" }
       includedirs { "../../" }
       includedirs { "../common/" }