diff --git a/serial-grovel.lisp b/serial-grovel.lisp
index df961b7..c43269a 100644
--- a/serial-grovel.lisp
+++ b/serial-grovel.lisp
@@ -5,7 +5,6 @@
 (include "fcntl.h")
 (include "stdio.h")
 (include "errno.h")
-(include "stropts.h")
 (include "fcntl.h")
 (include "stdlib.h")
 (include "unistd.h")