diff --git a/shared/contrib-additional.adoc b/shared/contrib-additional.adoc
--- a/shared/contrib-additional.adoc
+++ b/shared/contrib-additional.adoc
@@ -1896,7 +1896,7 @@
 * Ron Lenk mailto:rlenk@widget.xmission.com[rlenk@widget.xmission.com]
 * Ron van Daal mailto:ronvdaal@n1x.nl[ronvdaal@n1x.nl]
 * Ronald F. Guilmette mailto:rfg@monkeys.com[rfg@monkeys.com]
-* Ronald Klop mailto:ronald@echteman.nl[ronald@echteman.nl]
+* Ronald Klop mailto:ronald-lists@klop.ws[ronald-lists@klop.ws]
 * Ronald Kuehn mailto:kuehn@rz.tu-clausthal.de[kuehn@rz.tu-clausthal.de]
 * Roselyn Lee mailto:rosel@verniernetworks.com[rosel@verniernetworks.com]
 * Ross West mailto:freebsd@linepoint.com[freebsd@linepoint.com]