diff --git a/inventory/group_vars/jenkins-slave b/inventory/group_vars/jenkins-slave
index 6105653245..e914a7c90c 100644
--- a/inventory/group_vars/jenkins-slave
+++ b/inventory/group_vars/jenkins-slave
@@ -72,6 +72,7 @@ slave_packages_common:
 - pyxdg              # Required by libabigail (ticket 5797)
 - python-unittest2   # Required by libabigail (ticket 5797)
 - wget               # Required by libabigail (ticket 5797)
+- mailcap            # Required by libabigail (ticket 5797)
 
 # Packages installed only on Fedora Jenkins slaves
 slave_packages_fedora: