diff --git a/scripts/docker_install.sh b/scripts/docker_install.sh
index d630979afa3dbfaee39312c49c0d80aa15f148b1..05ef2816e4f723116b6606233c137c36f1eea0c5 100644
--- a/scripts/docker_install.sh
+++ b/scripts/docker_install.sh
@@ -23,7 +23,7 @@ apt-get install libfreetype6-dev \
 # required php extensions not included in base php image
 pecl install imagick-3.4.3RC1
 docker-php-ext-enable imagick
-docker-php-ext-install mysqli mcrypt gettext calendar zip
+docker-php-ext-install mysqli mcrypt gettext calendar zip soap
 docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/
 docker-php-ext-install gd