1 files changed, 2 insertions, 2 deletions

diff --git a/js/models/materials-model.js b/js/models/materials-model.js
index a45b0c72..9c692f45 100755
--- a/js/models/materials-model.js
+++ b/js/models/materials-model.js
@@ -112,7 +112,7 @@ exports.MaterialsModel = Montage.create(Component, {
         value: function (materialName) {
             var index = this.getIndexOfMaterial(materialName);
             if(index !== -1) {
-                return this._materials[index];
+                return this._materials[index].dup();
             }
         }
     },
@@ -123,7 +123,7 @@ exports.MaterialsModel = Montage.create(Component, {
                 {
                         var index = this.getIndexOfMaterialByShader( shaderName );
                         if (index >= 0)
-                                return this._materials[index];
+                                return this._materials[index].dup();
                 }
         },