diff --git a/root/tmp/setup/php-extensions.sh b/root/tmp/setup/php-extensions.sh
index 263b94f..069aa2f 100755
--- a/root/tmp/setup/php-extensions.sh
+++ b/root/tmp/setup/php-extensions.sh
@@ -60,7 +60,7 @@ docker-php-ext-install -j$(nproc) ldap
 
 # Memcached, MongoDB, Redis, APCu, igbinary.
 pecl install memcached mongodb redis apcu igbinary
-docker-php-ext-enable memcached redis apcu igbinary
+docker-php-ext-enable memcached mongodb redis apcu igbinary
 
 # ZIP
 docker-php-ext-configure zip --with-libzip
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',