diff --git a/reactos/dll/cpl/desk/desk.c b/reactos/dll/cpl/desk/desk.c
index 57a4b778ab7..ba7cfcddc5c 100644
--- a/reactos/dll/cpl/desk/desk.c
+++ b/reactos/dll/cpl/desk/desk.c
@@ -8,7 +8,7 @@
  */
 
 #include "desk.h"
-#include <Shellapi.h>
+#include <shellapi.h>
 #include <cplext.h>
 #include <debug.h>