diff --git a/src/hb-directwrite.cc b/src/hb-directwrite.cc
index 1f00aa478..1b2bd1964 100644
--- a/src/hb-directwrite.cc
+++ b/src/hb-directwrite.cc
@@ -28,7 +28,7 @@
 
 #include "hb-shaper-impl.hh"
 
-#include <DWrite_1.h>
+#include <dwrite_1.h>
 
 #include "hb-directwrite.h"