diff --git a/src/video/win32_v.cpp b/src/video/win32_v.cpp
--- a/src/video/win32_v.cpp
+++ b/src/video/win32_v.cpp
@@ -1258,7 +1258,7 @@ static const char *SelectPixelFormat(HDC
 		0, 0, 0, 0                     // Ignored/reserved.
 	};
 
-	if (IsWindowsVistaOrGreater()) pfd.dwFlags |= PFD_SUPPORT_COMPOSITION; // Make OpenTTD compatible with Aero.
+	pfd.dwFlags |= PFD_SUPPORT_COMPOSITION; // Make OpenTTD compatible with Aero.
 
 	/* Choose a suitable pixel format. */
 	int format = ChoosePixelFormat(dc, &pfd);