diff --git a/src/_updown/_updown.in b/src/_updown/_updown.in
index 430a0cff6..2c742c010 100644
--- a/src/_updown/_updown.in
+++ b/src/_updown/_updown.in
@@ -124,7 +124,7 @@
 #       PLUTO_MARK_OUT
 #              is an optional XFRM mark set on the outbound IPsec SA
 #
-#       PLUTO_ESP_ENC
+#       PLUTO_UDP_ENC
 #              contains the remote UDP port in the case of ESP_IN_UDP
 #              encapsulation
 #
diff --git a/src/_updown_espmark/_updown_espmark b/src/_updown_espmark/_updown_espmark
index 42cd3607b..e078dc245 100644
--- a/src/_updown_espmark/_updown_espmark
+++ b/src/_updown_espmark/_updown_espmark
@@ -124,7 +124,7 @@
 #       PLUTO_MARK_OUT
 #              is an optional XFRM mark set on the outbound IPsec SA
 #
-#       PLUTO_ESP_ENC
+#       PLUTO_UDP_ENC
 #              contains the remote UDP port in the case of ESP_IN_UDP
 #              encapsulation
 #
diff --git a/testing/tests/ikev2/net2net-same-nets/hosts/sun/etc/mark_updown b/testing/tests/ikev2/net2net-same-nets/hosts/sun/etc/mark_updown
index d7b68956c..c64158a2f 100755
--- a/testing/tests/ikev2/net2net-same-nets/hosts/sun/etc/mark_updown
+++ b/testing/tests/ikev2/net2net-same-nets/hosts/sun/etc/mark_updown
@@ -124,7 +124,7 @@
 #       PLUTO_MARK_OUT
 #              is an optional XFRM mark set on the outbound IPsec SA
 #
-#       PLUTO_ESP_ENC
+#       PLUTO_UDP_ENC
 #              contains the remote UDP port in the case of ESP_IN_UDP
 #              encapsulation
 #