diff --git a/ppp.h b/ppp.h
index 9d53423f..2bf93402 100644
--- a/ppp.h
+++ b/ppp.h
@@ -19,8 +19,8 @@
 #define PPP_ADDRESS	0xff	/* The address byte value */
 #define PPP_CONTROL	0x03	/* The control byte value */
 
-#define PPP_WITHDIRECTION_IN  0x00 /* non-standard for DLT_PPP_WITHDIRECTION */
-#define PPP_WITHDIRECTION_OUT 0x01 /* non-standard for DLT_PPP_WITHDIRECTION */
+#define PPP_PPPD_IN  0x00 /* non-standard for DLT_PPP_PPPD */
+#define PPP_PPPD_OUT 0x01 /* non-standard for DLT_PPP_PPPD */
 
 /* Protocol numbers */
 #define PPP_IP		0x0021	/* Raw IP */
diff --git a/print-ppp.c b/print-ppp.c
index 4409ee78..8e2024de 100644
--- a/print-ppp.c
+++ b/print-ppp.c
@@ -1578,13 +1578,13 @@ ppp_print(netdissect_options *ndo,
         ppp_header = GET_BE_U_2(p);
 
         switch(ppp_header) {
-        case (PPP_WITHDIRECTION_IN  << 8 | PPP_CONTROL):
+        case (PPP_PPPD_IN  << 8 | PPP_CONTROL):
             if (ndo->ndo_eflag) ND_PRINT("In  ");
             p += 2;
             length -= 2;
             hdr_len += 2;
             break;
-        case (PPP_WITHDIRECTION_OUT << 8 | PPP_CONTROL):
+        case (PPP_PPPD_OUT << 8 | PPP_CONTROL):
             if (ndo->ndo_eflag) ND_PRINT("Out ");
             p += 2;
             length -= 2;
diff --git a/print.c b/print.c
index 5b776d61..ee64843e 100644
--- a/print.c
+++ b/print.c
@@ -201,8 +201,8 @@ static const struct printer printers[] = {
 	{ ppp_hdlc_if_print,	DLT_PPP_SERIAL },
 #endif
 	{ ppp_if_print,		DLT_PPP },
-#ifdef DLT_PPP_WITHDIRECTION
-	{ ppp_if_print,		DLT_PPP_WITHDIRECTION },
+#ifdef DLT_PPP_PPPD
+	{ ppp_if_print,		DLT_PPP_PPPD },
 #endif
 #ifdef DLT_PPP_ETHER
 	{ pppoe_if_print,	DLT_PPP_ETHER },