diff --git a/README.md b/README.md
index 9437efb..125f7f2 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-[![Build Status](https://travis-ci.org/codeenigma/ce-vm.svg?branch=8.x)](https://travis-ci.org/codeenigma/ce-vm.svg?branch=8.x)
+[![Build Status](https://travis-ci.com/codeenigma/ce-vm.svg?branch=8.x)](https://travis-ci.com/codeenigma/ce-vm.svg?branch=8.x)
 # Docker based local web development stack
 
 Spins up a dev environment using Docker containers managed by Vagrant and configured with Ansible.
diff --git a/ansible/cli.yml b/ansible/cli.yml
index 43352b5..9ff2360 100644
--- a/ansible/cli.yml
+++ b/ansible/cli.yml
@@ -13,6 +13,7 @@
     - { role: unison, when: volume_type == 'unison' }
     - { role: php-cli }
     - { role: xdebug, php_build_type: cli }
+    - { role: gmp, php_build_type: cli }
     - { role: blackfire }
     - { role: rsyslog_client }
     - { role: postfix }
diff --git a/ansible/fpm.yml b/ansible/fpm.yml
index 91ce779..bfa4eac 100644
--- a/ansible/fpm.yml
+++ b/ansible/fpm.yml
@@ -15,6 +15,7 @@
     - { role: rsyslog_client }
     - { role: php-fpm }
     - { role: xdebug, php_build_type: fpm }
+    - { role: gmp, php_build_type: fpm }
     - { role: blackfire }
     - { role: postfix }
 
diff --git a/ansible/roles/gmp/tasks/main.yml b/ansible/roles/gmp/tasks/main.yml
new file mode 100644
index 0000000..4188cfc
--- /dev/null
+++ b/ansible/roles/gmp/tasks/main.yml
@@ -0,0 +1,11 @@
+---
+
+- name: Install gmp library.
+  apt: 
+    name: [ "php{{ php_version }}-gmp" ]
+    state: present
+    
+- name: Enable gmp extension
+  lineinfile:
+    path: '/etc/php/{{ php_version }}/{{ php_build_type }}/conf.d/20-gmp.ini'
+    line: 'extension=gmp.so'