diff --git a/include/d3dcompiler.h b/include/d3dcompiler.h
index 047c1eaeba9..7ce83be66df 100644
--- a/include/d3dcompiler.h
+++ b/include/d3dcompiler.h
@@ -25,6 +25,17 @@
 extern "C" {
 #endif
 
+#if defined(__GNUC__)
+#define D3DCOMPILER_DLL_W (const WCHAR[]){'d','3','d','c','o','m','p','i','l','e','r','_','4','3','.','d','l','l',0};
+#elif defined(_MSV_VER)
+#define D3DCOMPILER_DLL_W L"d3dcompiler_43.dll"
+#else
+static const WCHAR D3DCOMPILER_DLL_W[] = {'d','3','d','c','o','m','p','i','l','e','r','_','4','3','.','d','l','l',0};
+#endif
+
+#define D3DCOMPILER_DLL_A  "d3dcompiler_43.dll"
+#define D3DCOMPILER_DLL    WINELIB_NAME_AW(D3DCOMPILER_DLL_)
+
 #define D3DCOMPILE_DEBUG                            0x00000001
 #define D3DCOMPILE_SKIP_VALIDATION                  0x00000002
 #define D3DCOMPILE_SKIP_OPTIMIZATION                0x00000004