diff --git a/include/d3d10effect.h b/include/d3d10effect.h
index e020583ab35..772d424aca4 100644
--- a/include/d3d10effect.h
+++ b/include/d3d10effect.h
@@ -127,6 +127,10 @@ typedef struct _D3D10_PASS_SHADER_DESC
     UINT ShaderIndex;
 } D3D10_PASS_SHADER_DESC;
 
+#define D3D10_EFFECT_COMPILE_CHILD_EFFECT    0x0001
+#define D3D10_EFFECT_COMPILE_ALLOW_SLOW_OPS  0x0002
+#define D3D10_EFFECT_SINGLE_THREADED         0x0008
+
 DEFINE_GUID(IID_ID3D10EffectType, 0x4e9e1ddc, 0xcd9d, 0x4772, 0xa8, 0x37, 0x00, 0x18, 0x0b, 0x9b, 0x88, 0xfd);
 
 #define INTERFACE ID3D10EffectType