diff --git a/libraries/render-utils/src/Model.cpp b/libraries/render-utils/src/Model.cpp
index 6e969fe51f..6a06047bef 100644
--- a/libraries/render-utils/src/Model.cpp
+++ b/libraries/render-utils/src/Model.cpp
@@ -1691,10 +1691,7 @@ public:
     }
 };
 
-
-using packBlendshapeOffsetTo = void(glm::uvec4& packed, const BlendshapeOffsetUnpacked& unpacked);
-
-void packBlendshapeOffsetTo_Pos_F32_3xSN10_Nor_3xSN10_Tan_3xSN10(glm::uvec4& packed, const BlendshapeOffsetUnpacked& unpacked) {
+static void packBlendshapeOffsetTo_Pos_F32_3xSN10_Nor_3xSN10_Tan_3xSN10(glm::uvec4& packed, const BlendshapeOffsetUnpacked& unpacked) {
     float len = glm::compMax(glm::abs(unpacked.positionOffset));
     glm::vec3 normalizedPos(unpacked.positionOffset);
     if (len > 0.0f) {
@@ -1711,6 +1708,14 @@ void packBlendshapeOffsetTo_Pos_F32_3xSN10_Nor_3xSN10_Tan_3xSN10(glm::uvec4& pac
     );
 }
 
+static void packBlendshapeOffsets(BlendshapeOffsetUnpacked* unpacked, BlendshapeOffsetPacked* packed, int size) {
+    for (int i = 0; i < size; ++i) {
+        packBlendshapeOffsetTo_Pos_F32_3xSN10_Nor_3xSN10_Tan_3xSN10((*packed).packedPosNorTan, (*unpacked));
+        ++unpacked;
+        ++packed;
+    }
+}
+
 class Blender : public QRunnable {
 public:
 
@@ -1795,11 +1800,7 @@ void Blender::run() {
         // convert unpackedBlendshapeOffsets into packedBlendshapeOffsets for the gpu.
         auto unpacked = unpackedBlendshapeOffsets.data();
         auto packed = packedBlendshapeOffsets.data() + offset;
-        for (int i = 0; i < numVertsInMesh; ++i) {
-            packBlendshapeOffsetTo_Pos_F32_3xSN10_Nor_3xSN10_Tan_3xSN10((*packed).packedPosNorTan, (*unpacked));
-            ++unpacked;
-            ++packed;
-        }
+        packBlendshapeOffsets(unpacked, packed, numVertsInMesh);
 
         offset += numVertsInMesh;
     }