diff --git a/include/d3d10shader.h b/include/d3d10shader.h
index 7910057e204..4033c9b2708 100644
--- a/include/d3d10shader.h
+++ b/include/d3d10shader.h
@@ -113,4 +113,15 @@ typedef struct _D3D10_SHADER_MACRO
     LPCSTR Definition;
 } D3D10_SHADER_MACRO, *LPD3D10_SHADER_MACRO;
 
+typedef struct _D3D10_SIGNATURE_PARAMETER_DESC
+{
+    LPCSTR SemanticName;
+    UINT SemanticIndex;
+    UINT Register;
+    D3D10_NAME SystemValueType;
+    D3D10_REGISTER_COMPONENT_TYPE ComponentType;
+    BYTE Mask;
+    BYTE ReadWriteMask;
+} D3D10_SIGNATURE_PARAMETER_DESC;
+
 #endif /* __WINE_D3D10SHADER_H */