diff --git a/sys/sys/conf.h b/sys/sys/conf.h
index 0f76bcac787..4de926bf837 100644
--- a/sys/sys/conf.h
+++ b/sys/sys/conf.h
@@ -36,12 +36,14 @@
  * SUCH DAMAGE.
  *
  *	@(#)conf.h	8.5 (Berkeley) 1/9/95
- * $Id: conf.h,v 1.67 1999/07/20 09:47:50 phk Exp $
+ * $Id: conf.h,v 1.68 1999/08/08 18:42:59 phk Exp $
  */
 
 #ifndef _SYS_CONF_H_
 #define	_SYS_CONF_H_
 
+#include <sys/queue.h>
+
 #define SPECNAMELEN	15
 
 struct tty;
diff --git a/sys/sys/linedisc.h b/sys/sys/linedisc.h
index 0f76bcac787..4de926bf837 100644
--- a/sys/sys/linedisc.h
+++ b/sys/sys/linedisc.h
@@ -36,12 +36,14 @@
  * SUCH DAMAGE.
  *
  *	@(#)conf.h	8.5 (Berkeley) 1/9/95
- * $Id: conf.h,v 1.67 1999/07/20 09:47:50 phk Exp $
+ * $Id: conf.h,v 1.68 1999/08/08 18:42:59 phk Exp $
  */
 
 #ifndef _SYS_CONF_H_
 #define	_SYS_CONF_H_
 
+#include <sys/queue.h>
+
 #define SPECNAMELEN	15
 
 struct tty;