diff --git a/configure.in b/configure.in
index 6aa6fb4..128d4c6 100644
--- a/configure.in
+++ b/configure.in
@@ -29,7 +29,7 @@ AC_CONFIG_AUX_DIR(config)
 AC_CANONICAL_SYSTEM
 
 AM_CONFIG_HEADER(config.h)
-AM_INIT_AUTOMAKE(iftop, "0.17pre2")
+AM_INIT_AUTOMAKE(iftop, "0.17pre3")
 
 AC_DEFINE_UNQUOTED(IFTOP_VERSION, "$VERSION", [The iftop version number])
 
diff --git a/ppp.h b/ppp.h
index f394302..525d621 100644
--- a/ppp.h
+++ b/ppp.h
@@ -57,5 +57,3 @@
 #define PPP_BACP	0xc02b	/* Bandwidth Allocation Control Protocol */
 #define PPP_BAP		0xc02d	/* BAP */
 #define PPP_MP		0xc03d	/* Multi-Link */
-
-extern struct tok ppptype2str[];