diff --git a/src/netif/ppp/ccp.c b/src/netif/ppp/ccp.c
index 6c3aa63a..7bd65192 100644
--- a/src/netif/ppp/ccp.c
+++ b/src/netif/ppp/ccp.c
@@ -197,8 +197,10 @@ struct protent ccp_protent = {
 #endif /* PRINTPKT_SUPPORT */
     ccp_datainput,
     1,
+#if PRINTPKT_SUPPORT
     "CCP",
     "Compressed",
+#endif /* PRINTPKT_SUPPORT */
 #if PPP_OPTIONS
     ccp_option_list,
     NULL,
diff --git a/src/netif/ppp/chap-new.c b/src/netif/ppp/chap-new.c
index fbb73da4..bb20d18b 100644
--- a/src/netif/ppp/chap-new.c
+++ b/src/netif/ppp/chap-new.c
@@ -669,8 +669,10 @@ struct protent chap_protent = {
 #endif /* PRINTPKT_SUPPORT */
 	NULL,		/* datainput */
 	1,		/* enabled_flag */
+#if PRINTPKT_SUPPORT
 	"CHAP",		/* name */
 	NULL,		/* data_name */
+#endif /* PRINTPKT_SUPPORT */
 #if PPP_OPTIONS
 	chap_option_list,
 	NULL,		/* check_options */
diff --git a/src/netif/ppp/eap.c b/src/netif/ppp/eap.c
index 06aac356..e1542e4d 100644
--- a/src/netif/ppp/eap.c
+++ b/src/netif/ppp/eap.c
@@ -120,8 +120,10 @@ struct protent eap_protent = {
 #endif /* PRINTPKT_SUPPORT */
 	NULL,			/* process a received data packet */
 	1,			/* protocol enabled */
+#if PRINTPKT_SUPPORT
 	"EAP",			/* text name of protocol */
 	NULL,			/* text name of corresponding data protocol */
+#endif /* PRINTPKT_SUPPORT */
 #if PPP_OPTIONS
 	eap_option_list,	/* list of command-line options */
 	NULL,			/* check requested options; assign defaults */
diff --git a/src/netif/ppp/ecp.c b/src/netif/ppp/ecp.c
index a8c7ce67..9b2fdabc 100644
--- a/src/netif/ppp/ecp.c
+++ b/src/netif/ppp/ecp.c
@@ -116,8 +116,10 @@ struct protent ecp_protent = {
 #endif /* PRINTPKT_SUPPORT */
     NULL, /* ecp_datainput, */
     0,
+#if PRINTPKT_SUPPORT
     "ECP",
     "Encrypted",
+#endif /* PRINTPKT_SUPPORT */
 #if PPP_OPTIONS
     ecp_option_list,
     NULL,
diff --git a/src/netif/ppp/ipcp.c b/src/netif/ppp/ipcp.c
index 40343ab0..1fb9652b 100644
--- a/src/netif/ppp/ipcp.c
+++ b/src/netif/ppp/ipcp.c
@@ -281,8 +281,10 @@ struct protent ipcp_protent = {
 #endif /* PRINTPKT_SUPPORT */
     NULL,
     1,
+#if PRINTPKT_SUPPORT
     "IPCP",
     "IP",
+#endif /* PRINTPKT_SUPPORT */
 #if PPP_OPTIONS
     ipcp_option_list,
     ip_check_options,
diff --git a/src/netif/ppp/lcp.c b/src/netif/ppp/lcp.c
index 4f8f17cb..0768efdc 100644
--- a/src/netif/ppp/lcp.c
+++ b/src/netif/ppp/lcp.c
@@ -283,8 +283,10 @@ struct protent lcp_protent = {
 #endif /* PRINTPKT_SUPPORT */
     NULL,
     1,
+#if PRINTPKT_SUPPORT
     "LCP",
     NULL,
+#endif /* PRINTPKT_SUPPORT */
 #if PPP_OPTIONS
     lcp_option_list,
     NULL,
diff --git a/src/netif/ppp/pppd.h b/src/netif/ppp/pppd.h
index 6bf117d4..91e88188 100644
--- a/src/netif/ppp/pppd.h
+++ b/src/netif/ppp/pppd.h
@@ -431,8 +431,10 @@ struct protent {
     /* Process a received data packet */
     void (*datainput) __P((int unit, u_char *pkt, int len));
     bool enabled_flag;		/* 0 iff protocol is disabled */
+#if PRINTPKT_SUPPORT
     char *name;			/* Text name of protocol */
     char *data_name;		/* Text name of corresponding data protocol */
+#endif /* PRINTPKT_SUPPORT */
 #if PPP_OPTIONS
     option_t *options;		/* List of command-line options */
     /* Check requested options, assign defaults */
diff --git a/src/netif/ppp/upap.c b/src/netif/ppp/upap.c
index 239eae11..298114fc 100644
--- a/src/netif/ppp/upap.c
+++ b/src/netif/ppp/upap.c
@@ -103,8 +103,10 @@ struct protent pap_protent = {
 #endif /* PRINTPKT_SUPPORT */
     NULL,
     1,
+#if PRINTPKT_SUPPORT
     "PAP",
     NULL,
+#endif /* PRINTPKT_SUPPORT */
 #if PPP_OPTIONS
     pap_option_list,
     NULL,