diff --git a/source/model/modelfinalization.js b/source/model/modelfinalization.js
index bbea60f..0760044 100644
--- a/source/model/modelfinalization.js
+++ b/source/model/modelfinalization.js
@@ -195,6 +195,17 @@ OV.CheckModel = function (model)
             if (!IsCorrectIndex (triangle.v2, mesh.VertexCount ())) {
                 return false;
             }
+            if (triangle.HasVertexColors ()) {
+                if (!IsCorrectIndex (triangle.c0, mesh.VertexColorCount ())) {
+                    return false;
+                }
+                if (!IsCorrectIndex (triangle.c1, mesh.VertexColorCount ())) {
+                    return false;
+                }
+                if (!IsCorrectIndex (triangle.c2, mesh.VertexColorCount ())) {
+                    return false;
+                }
+            }
             if (!IsCorrectIndex (triangle.n0, mesh.NormalCount ())) {
                 return false;
             }
diff --git a/test/tests/mesh_test.js b/test/tests/mesh_test.js
index aad621d..fbfba9b 100644
--- a/test/tests/mesh_test.js
+++ b/test/tests/mesh_test.js
@@ -59,8 +59,12 @@ describe ('Mesh', function() {
         assert.strictEqual (triangle.v1, 2);
         assert.strictEqual (triangle.v2, 3);
         assert (triangle.HasVertices ());
+        assert (!triangle.HasVertexColors ());
         assert (!triangle.HasNormals ());
         assert (!triangle.HasTextureUVs ());
+        assert.strictEqual (triangle.c0, null);
+        assert.strictEqual (triangle.c1, null);
+        assert.strictEqual (triangle.c2, null);
         assert.strictEqual (triangle.n0, null);
         assert.strictEqual (triangle.n1, null);
         assert.strictEqual (triangle.n2, null);