diff --git a/guacamole-docker/bin/start.sh b/guacamole-docker/bin/start.sh
index be979011d..f5367b490 100755
--- a/guacamole-docker/bin/start.sh
+++ b/guacamole-docker/bin/start.sh
@@ -201,6 +201,10 @@ END
         "mysql-default-max-group-connections-per-user" \
         "$MYSQL_DEFAULT_MAX_GROUP_CONNECTIONS_PER_USER"
 
+    set_optional_property     \
+        "mysql-user-required" \
+        "$MYSQL_USER_REQUIRED"
+
     # Add required .jar files to GUACAMOLE_LIB and GUACAMOLE_EXT
     ln -s /opt/guacamole/mysql/mysql-connector-*.jar "$GUACAMOLE_LIB"
     ln -s /opt/guacamole/mysql/guacamole-auth-*.jar "$GUACAMOLE_EXT"
@@ -324,6 +328,10 @@ END
         "postgresql-default-max-group-connections-per-user" \
         "$POSTGRES_DEFAULT_MAX_GROUP_CONNECTIONS_PER_USER"
 
+    set_optional_property          \
+        "postgresql-user-required" \
+        "$POSTGRES_USER_REQUIRED"
+
     # Add required .jar files to GUACAMOLE_LIB and GUACAMOLE_EXT
     ln -s /opt/guacamole/postgresql/postgresql-*.jar "$GUACAMOLE_LIB"
     ln -s /opt/guacamole/postgresql/guacamole-auth-*.jar "$GUACAMOLE_EXT"