diff --git a/WickedEngine/shaders/objectPS_simple.hlsl b/WickedEngine/shaders/objectPS_simple.hlsl
index ebcb51d9f..4e6e59a55 100644
--- a/WickedEngine/shaders/objectPS_simple.hlsl
+++ b/WickedEngine/shaders/objectPS_simple.hlsl
@@ -1,5 +1,6 @@
 #define OBJECTSHADER_LAYOUT_SHADOW_TEX
 #define OBJECTSHADER_USE_COLOR
+#define OBJECTSHADER_USE_NORMAL // tessellation compat!
 #include "objectHF.hlsli"
 
 [earlydepthstencil]
diff --git a/WickedEngine/shaders/objectVS_simple.hlsl b/WickedEngine/shaders/objectVS_simple.hlsl
index ba84a94e2..53d355a7e 100644
--- a/WickedEngine/shaders/objectVS_simple.hlsl
+++ b/WickedEngine/shaders/objectVS_simple.hlsl
@@ -1,4 +1,5 @@
 #define OBJECTSHADER_COMPILE_VS
 #define OBJECTSHADER_LAYOUT_SHADOW_TEX
 #define OBJECTSHADER_USE_COLOR
+#define OBJECTSHADER_USE_NORMAL // tessellation compat!
 #include "objectHF.hlsli"