diff --git a/reactos/include/psdk/wingdi.h b/reactos/include/psdk/wingdi.h
index edfbae652f3..cad35c7d659 100644
--- a/reactos/include/psdk/wingdi.h
+++ b/reactos/include/psdk/wingdi.h
@@ -3050,7 +3050,9 @@ UINT WINAPI GetEnhMetaFilePaletteEntries(HENHMETAFILE,UINT,LPPALETTEENTRY);
 UINT WINAPI GetEnhMetaFilePixelFormat(HENHMETAFILE,UINT,PIXELFORMATDESCRIPTOR*);
 DWORD WINAPI GetFontData(HDC,DWORD,DWORD,PVOID,DWORD);
 DWORD WINAPI GetFontLanguageInfo(HDC);
+#if (_WIN32_WINNT >= 0x0500)
 DWORD WINAPI GetFontUnicodeRanges(HDC,LPGLYPHSET);
+#endif
 DWORD WINAPI GetGlyphIndicesA(HDC,LPCSTR,INT,LPWORD,DWORD);
 DWORD WINAPI GetGlyphIndicesW(HDC,LPCWSTR,INT,LPWORD,DWORD);
 DWORD WINAPI GetGlyphOutlineA(HDC,UINT,UINT,LPGLYPHMETRICS,DWORD,PVOID,const MAT2*);