diff --git a/reactos/tools/winebuild/main.c b/reactos/tools/winebuild/main.c
index fdd297832c7..e3417b7a46f 100644
--- a/reactos/tools/winebuild/main.c
+++ b/reactos/tools/winebuild/main.c
@@ -26,6 +26,7 @@
 
 #include <assert.h>
 #include <stdio.h>
+#include <io.h> /* unlink() */
 #include <signal.h>
 #include <errno.h>
 #include <string.h>