diff --git a/setup/webmail.sh b/setup/webmail.sh
index 666153c1..4949356e 100755
--- a/setup/webmail.sh
+++ b/setup/webmail.sh
@@ -22,7 +22,7 @@ source /etc/mailinabox.conf # load global vars
 echo "Installing Roundcube (webmail)..."
 apt_install \
 	dbconfig-common \
-	php7.0-cli php7.0-sqlite php7.0-mcrypt php7.0-intl php7.0-json php7.0-common \
+	php7.0-cli php7.0-sqlite php7.0-mcrypt php7.0-intl php7.0-json php7.0-common php7.0-curl \
 	php7.0-gd php7.0-pspell tinymce libjs-jquery libjs-jquery-mousewheel libmagic1 php7.0-mbstring
 
 apt_get_quiet remove php-mail-mimedecode # no longer needed since Roundcube 1.1.3