diff --git a/profiles/package.mask b/profiles/package.mask
index 4ee41316af39c..55e050dddbfc1 100644
--- a/profiles/package.mask
+++ b/profiles/package.mask
@@ -29,6 +29,12 @@
 
 #--- END OF EXAMPLES ---
 
+# Ulrich Müller <ulm@gentoo.org> (2019-09-06)
+# Unmaintained upstream, last release in 2006.
+# Use app-emacs/mediawiki as replacement.
+# Masked for removal in 30 days, bug #693598.
+app-emacs/wikipedia-mode
+
 # Michał Górny <mgorny@gentoo.org> (2019-09-06)
 # Unmaintained.  Tests fail to build.  Last release in 2014.  No reverse
 # dependencies.  Removal in 30 days.  Bug #640860.