diff --git a/guac-upgrade.sh b/guac-upgrade.sh
index a747801..5d16275 100644
--- a/guac-upgrade.sh
+++ b/guac-upgrade.sh
@@ -24,8 +24,11 @@ wget ${SERVER}/incubator/guacamole/${VERSION}-incubating/binary/guacamole-auth-j
 tar -xzf guacamole-auth-jdbc-${VERSION}-incubating.tar.gz
 cp guacamole-auth-jdbc-${VERSION}-incubating/mysql/guacamole-auth-jdbc-mysql-${VERSION}-incubating.jar /etc/guacamole/extensions/
 
-# Commented out this lines as there is no schema upgrade from 0.9.11 to 0.9.12
-# mysql -u root -p guacamole_db < guacamole-auth-jdbc-${VERSION}-incubating/mysql/schema/upgrade/upgrade-pre-${VERSION}.sql
+# Check if there is an schema upgrade file, if there is run it (will prompt for password)
+if [ -f "guacamole-auth-jdbc-${VERSION}-incubating/mysql/schema/upgrade/upgrade-pre-${VERSION}.sql" ]
+then
+    mysql -u root -p guacamole_db < guacamole-auth-jdbc-${VERSION}-incubating/mysql/schema/upgrade/upgrade-pre-${VERSION}.sql
+fi
 
 # Start Tomcat
 service tomcat8 start