diff --git a/vlib/os/const.v b/vlib/os/const.v
index fcbe6fb368..f9177f23f9 100644
--- a/vlib/os/const.v
+++ b/vlib/os/const.v
@@ -57,6 +57,7 @@ const (
 
 const (
 	FILE_INVALID_FILE_ID = (-1)
+	INVALID_HANDLE_VALUE = (-1)
 )
 
 // (Must be realized in Syscall) (Must be specified)