diff --git a/debian/aegir3-hostmaster.postinst b/debian/aegir3-hostmaster.postinst
index dc64d1d8f6079755c843a070f396e07ab9238e01..909ccd288dcefd7e144a79f02d292a92a0b07fe3 100644
--- a/debian/aegir3-hostmaster.postinst
+++ b/debian/aegir3-hostmaster.postinst
@@ -115,12 +115,15 @@ case "$1" in
             db_get "aegir/db_host"
             AEGIR_DB_HOST="$RET"
 
+            # Source os-release to properly handle differences between distributions
+            . /etc/os-release
+
             # Determin if we create a db accoount or ask for it.
             # Starting from MariaDB 10.1... https://www.drupal.org/node/2770819
             # TODO: Work with future versions
-            if dpkg -s mariadb-server-10.1 > /dev/null 2>&1
+            if [ $ID = 'debian' ]  && dpkg -s mariadb-server-10.1 > /dev/null 2>&1
             then
-              # MariaDB > 10.1
+              # MariaDB = 10.1
               CREATEUSER=1
             else
               # Mysql & MariaDB < 10.1