diff --git a/include/d3d10shader.h b/include/d3d10shader.h
index 88091c492bd..7910057e204 100644
--- a/include/d3d10shader.h
+++ b/include/d3d10shader.h
@@ -99,6 +99,14 @@ typedef enum D3D10_NAME
     D3D10_NAME_DEPTH = 65,
 } D3D10_NAME;
 
+typedef enum D3D10_REGISTER_COMPONENT_TYPE
+{
+    D3D10_REGISTER_COMPONENT_UNKNOWN = 0,
+    D3D10_REGISTER_COMPONENT_UINT32 = 1,
+    D3D10_REGISTER_COMPONENT_SINT32 = 2,
+    D3D10_REGISTER_COMPONENT_FLOAT32 = 3,
+} D3D10_REGISTER_COMPONENT_TYPE;
+
 typedef struct _D3D10_SHADER_MACRO
 {
     LPCSTR Name;