diff --git a/Makefile b/Makefile
index 558587a..11fa7a1 100644
--- a/Makefile
+++ b/Makefile
@@ -48,11 +48,11 @@ PROGRAMS = candump can-sniffer cansend
 all: $(PROGRAMS)
 
 clean:
-	rm -f $(PROGRAMS)
+	rm -f $(PROGRAMS) *.o
 
 distclean:
 	rm -f $(PROGRAMS) *~
 
 cansend.o: lib.h
 
-cansend: cansend.o lib.o
\ No newline at end of file
+cansend: cansend.o lib.o
diff --git a/lib.c b/lib.c
index 0de7e11..475ecd3 100644
--- a/lib.c
+++ b/lib.c
@@ -3,7 +3,7 @@
  */
 
 /*
- * cansend.c - simple command line tool to send CAN-frames via CAN_RAW sockets
+ * lib.c - library for command line tools
  *
  * Copyright (c) 2002-2005 Volkswagen Group Electronic Research
  * All rights reserved.
@@ -49,6 +49,7 @@
 #include <stdio.h>
 #include <string.h>
 
+#include <sys/socket.h> /* for sa_family_t */
 #include <linux/can.h>
 
 #define CANID_DELIM '#'
diff --git a/lib.h b/lib.h
index cf86953..4b010da 100644
--- a/lib.h
+++ b/lib.h
@@ -3,7 +3,7 @@
  */
 
 /*
- * cansend.c - simple command line tool to send CAN-frames via CAN_RAW sockets
+ * lib.h - library include for command line tools
  *
  * Copyright (c) 2002-2005 Volkswagen Group Electronic Research
  * All rights reserved.