diff --git a/examples/api_tutorial/api-tutorial-main.cc b/examples/api_tutorial/api-tutorial-main.cc
index f85b1c15..8efe5253 100644
--- a/examples/api_tutorial/api-tutorial-main.cc
+++ b/examples/api_tutorial/api-tutorial-main.cc
@@ -116,7 +116,7 @@ void CreateScene(tinyusdz::Stage *stage) {
 
       tinyusdz::value::matrix4d transform = a0 * b0;
 
-      op.set_value(transform);
+      op.set_value(std::move(transform));
 
       // `xformOpOrder`(token[]) is represented as std::vector<XformOp>
       xform.xformOps.push_back(op);
@@ -130,7 +130,7 @@ void CreateScene(tinyusdz::Stage *stage) {
       translate[0] = 1.0;
       translate[1] = 2.0;
       translate[2] = 3.0;
-      op.set_value(translate);
+      op.set_value(std::move(translate));
 
       // `xformOpOrder`(token[]) is represented as std::vector<XformOp>
       xform.xformOps.push_back(op);
@@ -172,7 +172,7 @@ void CreateScene(tinyusdz::Stage *stage) {
       pts.push_back({1.0f, 1.0f, 0.0f});
       pts.push_back({0.0f, 1.0f, 0.0f});
 
-      mesh.points.set_value(pts);
+      mesh.points.set_value(std::move(pts));
     }
 
     {
@@ -181,7 +181,7 @@ void CreateScene(tinyusdz::Stage *stage) {
       std::vector<int> counts;
       counts.push_back(3);
       counts.push_back(3);
-      mesh.faceVertexCounts.set_value(counts);
+      mesh.faceVertexCounts.set_value(std::move(counts));
 
       indices.push_back(0);
       indices.push_back(1);
@@ -191,7 +191,7 @@ void CreateScene(tinyusdz::Stage *stage) {
       indices.push_back(2);
       indices.push_back(3);
 
-      mesh.faceVertexIndices.set_value(indices);
+      mesh.faceVertexIndices.set_value(std::move(indices));
     }
 
     // primvar and custom attribute can be added to generic Property container
@@ -212,7 +212,7 @@ void CreateScene(tinyusdz::Stage *stage) {
         uvs.push_back({0.0f, 1.0f});
 
         // Fast path. Set the value directly to Attribute.
-        uvAttr.set_value(uvs);
+        uvAttr.set_value(std::move(uvs));
 
         // or we can first build primvar::PrimVar
         // tinyusdz::primvar::PrimVar uvVar;
@@ -240,7 +240,7 @@ void CreateScene(tinyusdz::Stage *stage) {
         uvIndices.push_back(2);
 
         tinyusdz::primvar::PrimVar uvIndexVar;
-        uvIndexVar.set_value(uvIndices);
+        uvIndexVar.set_value(std::move(uvIndices));
         uvIndexAttr.set_var(std::move(uvIndexVar));
         // Or you can use this approach(if you want to keep a copy of PrimVar
         // data)
@@ -280,7 +280,7 @@ void CreateScene(tinyusdz::Stage *stage) {
         uvs.push_back({1.0f, 1.0f});
         uvs.push_back({0.0f, 1.0f});
 
-        uvPrimvar.set_value(uvs); // value at 'default' time
+        uvPrimvar.set_value(std::move(uvs)); // value at 'default' time
         uvPrimvar.set_interpolation(tinyusdz::Interpolation::Vertex);
 
         std::vector<int> uvIndices;
@@ -407,7 +407,7 @@ void CreateScene(tinyusdz::Stage *stage) {
     redVariant.metas().comment = "red color";
     tinyusdz::value::color3f redColor({1.0f, 0.0f, 0.0f});
     tinyusdz::Attribute redColorAttr;
-    redColorAttr.set_value(redColor);
+    redColorAttr.set_value(std::move(redColor));
     redVariant.properties().emplace("mycolor", redColorAttr);
     // TODO: Add example to add childPrims under Variant
     // redVariant.primChildren().emplace(...)
@@ -416,7 +416,7 @@ void CreateScene(tinyusdz::Stage *stage) {
     greenVariant.metas().comment = "green color";
     tinyusdz::value::color3f greenColor({0.0f, 1.0f, 0.0f});
     tinyusdz::Attribute greenColorAttr;
-    greenColorAttr.set_value(greenColor);
+    greenColorAttr.set_value(std::move(greenColor));
     greenVariant.properties().emplace("mycolor", greenColorAttr);
 
     variantSet.name = "red";
diff --git a/examples/file_format/file-format-example.cc b/examples/file_format/file-format-example.cc
index a5b04da5..c19b320f 100644
--- a/examples/file_format/file-format-example.cc
+++ b/examples/file_format/file-format-example.cc
@@ -158,7 +158,7 @@ static bool MyRead(const tinyusdz::Asset &asset,
   memcpy(&val, asset.data(), 4);
 
   tinyusdz::Attribute attr;
-  attr.set_value(val);
+  attr.set_value(std::move(val));
   attr.set_name("myval");
   attr.variability() = tinyusdz::Variability::Uniform;
 
diff --git a/examples/save_usda/main.cc b/examples/save_usda/main.cc
index b48d8dad..4d76bf2b 100644
--- a/examples/save_usda/main.cc
+++ b/examples/save_usda/main.cc
@@ -24,7 +24,7 @@ void SimpleScene(tinyusdz::Stage *stage)
   translate[0] = 1.0;
   translate[1] = 2.0;
   translate[2] = 3.0;
-  op.set_value(translate);
+  op.set_value(std::move(translate));
 
   xform.xformOps.push_back(op);
 
@@ -41,7 +41,7 @@ void SimpleScene(tinyusdz::Stage *stage)
 
     pts.push_back({0.0f, 1.0f, 0.0f});
 
-    mesh.points.set_value(pts);
+    mesh.points.set_value(std::move(pts));
   }
 
   {
@@ -50,7 +50,7 @@ void SimpleScene(tinyusdz::Stage *stage)
     std::vector<int> counts;
     counts.push_back(3);
     counts.push_back(3);
-    mesh.faceVertexCounts.set_value(counts);
+    mesh.faceVertexCounts.set_value(std::move(counts));
 
     indices.push_back(0);
     indices.push_back(1);
@@ -60,7 +60,7 @@ void SimpleScene(tinyusdz::Stage *stage)
     indices.push_back(2);
     indices.push_back(3);
 
-    mesh.faceVertexIndices.set_value(indices);
+    mesh.faceVertexIndices.set_value(std::move(indices));
   }
 
   // primvar and custom attribute can be added to generic Property container `props`
@@ -80,7 +80,7 @@ void SimpleScene(tinyusdz::Stage *stage)
       uvs.push_back({0.0f, 1.0f});
 
       // Fast path. Set the value directly to Attribute.
-      uvAttr.set_value(uvs);
+      uvAttr.set_value(std::move(uvs));
 
       // or we can first build primvar::PrimVar
       //tinyusdz::primvar::PrimVar uvVar;
@@ -109,7 +109,7 @@ void SimpleScene(tinyusdz::Stage *stage)
 
 
       tinyusdz::primvar::PrimVar uvIndexVar;
-      uvIndexVar.set_value(uvIndices);
+      uvIndexVar.set_value(std::move(uvIndices));
       uvIndexAttr.set_var(std::move(uvIndexVar));
 
       tinyusdz::Property uvIndexProp(uvIndexAttr, /* custom*/false);
diff --git a/tests/unit/unit-primvar.cc b/tests/unit/unit-primvar.cc
index ee9c2cb2..ffe3a53d 100644
--- a/tests/unit/unit-primvar.cc
+++ b/tests/unit/unit-primvar.cc
@@ -20,7 +20,7 @@ void primvar_test(void) {
     tinyusdz::GeomMesh mesh;
     std::vector<float> scalar_array = {1.0, 2.0, 3.0, 4.0};
     tinyusdz::Attribute attr;
-    attr.set_value(scalar_array);
+    attr.set_value(std::move(scalar_array));
     tinyusdz::Property prop(attr, /* custom */false);
 
     mesh.props.emplace("primvars:myvar", prop);