diff --git a/AssetStudioFBXNative/api.cpp b/AssetStudioFBXNative/api.cpp
index 3fe775e..cf4a856 100644
--- a/AssetStudioFBXNative/api.cpp
+++ b/AssetStudioFBXNative/api.cpp
@@ -462,7 +462,7 @@ AS_API(void) AsFbxMeshCreateElementNormal(FbxMesh* pMesh)
 	pNormal->SetReferenceMode(FbxGeometryElement::eDirect);
 }
 
-AS_API(void) AsFbxMeshCreateElementUV(FbxMesh* pMesh, int32_t uv)
+AS_API(void) AsFbxMeshCreateDiffuseUV(FbxMesh* pMesh, int32_t uv)
 {
 	if (pMesh == nullptr)
 	{
@@ -474,6 +474,18 @@ AS_API(void) AsFbxMeshCreateElementUV(FbxMesh* pMesh, int32_t uv)
 	pUV->SetReferenceMode(FbxGeometryElement::eDirect);
 }
 
+AS_API(void) AsFbxMeshCreateNormalMapUV(FbxMesh* pMesh, int32_t uv)
+{
+	if (pMesh == nullptr)
+	{
+		return;
+	}
+
+	auto pUV = pMesh->CreateElementUV(FbxString("UV") + FbxString(uv), FbxLayerElement::eTextureNormalMap);
+	pUV->SetMappingMode(FbxGeometryElement::eByControlPoint);
+	pUV->SetReferenceMode(FbxGeometryElement::eDirect);
+}
+
 AS_API(void) AsFbxMeshCreateElementTangent(FbxMesh* pMesh)
 {
 	if (pMesh == nullptr)
@@ -613,7 +625,7 @@ AS_API(void) AsFbxMeshElementUVAdd(FbxMesh* pMesh, int32_t elementIndex, float u
 		return;
 	}
 
-	auto pElem = pMesh->GetElementUV(elementIndex);
+	auto pElem = pMesh->GetElementUV(FbxString("UV") + FbxString(elementIndex));
 	auto& array = pElem->GetDirectArray();
 
 	array.Add(FbxVector2(u, v));
diff --git a/AssetStudioFBXNative/api.h b/AssetStudioFBXNative/api.h
index 1422136..fb21034 100644
--- a/AssetStudioFBXNative/api.h
+++ b/AssetStudioFBXNative/api.h
@@ -66,7 +66,9 @@ AS_API(void) AsFbxMeshInitControlPoints(fbxsdk::FbxMesh* pMesh, int32_t vertexCo
 
 AS_API(void) AsFbxMeshCreateElementNormal(fbxsdk::FbxMesh* pMesh);
 
-AS_API(void) AsFbxMeshCreateElementUV(fbxsdk::FbxMesh* pMesh, int32_t uv);
+AS_API(void) AsFbxMeshCreateDiffuseUV(fbxsdk::FbxMesh* pMesh, int32_t uv);
+
+AS_API(void) AsFbxMeshCreateNormalMapUV(fbxsdk::FbxMesh* pMesh, int32_t uv);
 
 AS_API(void) AsFbxMeshCreateElementTangent(fbxsdk::FbxMesh* pMesh);
 
diff --git a/AssetStudioFBXWrapper/FbxExporterContext.PInvoke.cs b/AssetStudioFBXWrapper/FbxExporterContext.PInvoke.cs
index e97271a..57334db 100644
--- a/AssetStudioFBXWrapper/FbxExporterContext.PInvoke.cs
+++ b/AssetStudioFBXWrapper/FbxExporterContext.PInvoke.cs
@@ -142,7 +142,10 @@ namespace AssetStudio.FbxInterop
         private static extern void AsFbxMeshCreateElementNormal(IntPtr mesh);
 
         [DllImport(FbxDll.DllName, CallingConvention = CallingConvention.Winapi)]
-        private static extern void AsFbxMeshCreateElementUV(IntPtr mesh, int uv);
+        private static extern void AsFbxMeshCreateDiffuseUV(IntPtr mesh, int uv);
+
+        [DllImport(FbxDll.DllName, CallingConvention = CallingConvention.Winapi)]
+        private static extern void AsFbxMeshCreateNormalMapUV(IntPtr mesh, int uv);
 
         [DllImport(FbxDll.DllName, CallingConvention = CallingConvention.Winapi)]
         private static extern void AsFbxMeshCreateElementTangent(IntPtr mesh);
diff --git a/AssetStudioFBXWrapper/FbxExporterContext.cs b/AssetStudioFBXWrapper/FbxExporterContext.cs
index b5762f6..375569e 100644
--- a/AssetStudioFBXWrapper/FbxExporterContext.cs
+++ b/AssetStudioFBXWrapper/FbxExporterContext.cs
@@ -255,12 +255,14 @@ namespace AssetStudio.FbxInterop
                     AsFbxMeshCreateElementNormal(mesh);
                 }
 
-                for (var i = 0; i < 2; i += 1)
+                if (importedMesh.hasUV[0])
                 {
-                    if (importedMesh.hasUV[i])
-                    {
-                        AsFbxMeshCreateElementUV(mesh, i);
-                    }
+                    AsFbxMeshCreateDiffuseUV(mesh, 0);
+                }
+
+                if (importedMesh.hasUV[1])
+                {
+                    AsFbxMeshCreateNormalMapUV(mesh, 1);
                 }
 
                 if (importedMesh.hasTangent)