diff --git a/root/tmp/setup/php-extensions.sh b/root/tmp/setup/php-extensions.sh
index 5406b44..3857b05 100755
--- a/root/tmp/setup/php-extensions.sh
+++ b/root/tmp/setup/php-extensions.sh
@@ -59,8 +59,8 @@ docker-php-ext-configure ldap --with-libdir=lib/x86_64-linux-gnu/
 docker-php-ext-install -j$(nproc) ldap
 
 # SOLR, Memcached, Redis, APCu, igbinary.
-pecl install solr memcached redis apcu igbinary
-docker-php-ext-enable solr memcached redis apcu igbinary
+pecl install solr memcached mongodb redis apcu igbinary
+docker-php-ext-enable solr memcached mongodb redis apcu igbinary
 
 echo 'apc.enable_cli = On' >> /usr/local/etc/php/conf.d/docker-php-ext-apcu.ini
 
diff --git a/tests/fixtures/test.php b/tests/fixtures/test.php
index dbff555..ad31703 100644
--- a/tests/fixtures/test.php
+++ b/tests/fixtures/test.php
@@ -7,6 +7,7 @@
     'intl',
     'ldap',
     'memcached',
+    'mongodb',
     'mysqli',
     'oci8',
     'pgsql',