diff --git a/states/php/defaults.yaml b/states/php/defaults.yaml
index 567d8bc..0113472 100644
--- a/states/php/defaults.yaml
+++ b/states/php/defaults.yaml
@@ -7,6 +7,7 @@ php:
     - php-curl
     - php-fpm
     - php-gd
+    - php-gmp
     - php-imagick
     - php-intl
     - php-mbstring