diff --git a/src/scripts/ext/phalcon.sh b/src/scripts/ext/phalcon.sh
index c49ee4fa..dd0c8749 100644
--- a/src/scripts/ext/phalcon.sh
+++ b/src/scripts/ext/phalcon.sh
@@ -22,7 +22,7 @@ update_ppa() {
 install_phalcon() {
   extension=$1
   version=$2
-  (update_ppa && sudo DEBIAN_FRONTEND=noninteractive apt-get install -y "php$version-$extension" >/dev/null 2>&1 && add_log "$tick" "$extension" "Installed and enabled") ||
+  (update_ppa && sudo DEBIAN_FRONTEND=noninteractive apt-get install -y "php$version-psr" "php$version-$extension" >/dev/null 2>&1 && add_log "$tick" "$extension" "Installed and enabled") ||
   add_log "$cross" "$extension" "Could not install $extension on PHP $semver"
 }