diff --git a/README.md b/README.md
index 7abb683..986d400 100644
--- a/README.md
+++ b/README.md
@@ -37,6 +37,13 @@ You can run it (using `/var/lib/trantor` for storage):
 # $GOPATH/bin/trantor -assets $GOPATH/src/pkg/gitlab.com/trantor/trantor/ -store /var/lib/trantor
 ```
 
+The first time you run it, the database will be initialized. To initialize an admin user, include the -set-admin-user and -set-admin-pass variables
+when you run it. The admin user will be initialized after the first time you run the application with these parameters, so there is no need to
+include them on subsequent runs (but no harm in doing so).
+```
+# $GOPATH/bin/trantor -assets $GOPATH/src/pkg/gitlab.com/trantor/trantor/ -store /var/lib/trantor -set-admin-user 'admin' -set-admin-pass 'MY_ADMIN_PASSWORD'
+```
+
 Go to your browser to: http://localhost:8080
 
 ### For developers
@@ -49,7 +56,7 @@ $ go build
 
 Now you can run it:
 ```
-$ ./trantor
+$ ./trantor  -set-admin-user 'admin' -set-admin-pass 'MY_ADMIN_PASSWORD'
 ```
 
 Go to your browser to: http://localhost:8080
diff --git a/lib/database/database.go b/lib/database/database.go
index d18adbf..071871a 100644
--- a/lib/database/database.go
+++ b/lib/database/database.go
@@ -19,6 +19,7 @@ type DB interface {
 	IsBookActive(id string) bool
 	AddUser(name string, pass string) error
 	AddRawUser(name string, hpass []byte, salt []byte, role string) error
+	SetAdminUser(name string, pass string) error
 	GetRole(name string) (string, error)
 	SetPassword(name string, pass string) error
 	SetRole(name, role string) error
@@ -140,6 +141,8 @@ CREATE INDEX IF NOT EXISTS books_lang_idx ON books (lang);
 CREATE INDEX IF NOT EXISTS books_isbn_idx ON books (isbn);
 CREATE INDEX IF NOT EXISTS books_active_idx ON books (active);
 
+
+
 -- Books trigram indexes
 CREATE INDEX IF NOT EXISTS books_title_idx ON books USING GIN (title gin_trgm_ops);
 CREATE INDEX IF NOT EXISTS books_contributor_idx ON books USING GIN (contributor gin_trgm_ops);
diff --git a/lib/database/ro.go b/lib/database/ro.go
index 6010a0f..ca3e7b7 100644
--- a/lib/database/ro.go
+++ b/lib/database/ro.go
@@ -53,6 +53,11 @@ func (db *roDB) AddRawUser(name string, hpass []byte, salt []byte, role string)
 	return errors.New("RO database")
 }
 
+func (db *roDB) SetAdminUser(name string, pass string) error {
+	return errors.New("RO database")
+}
+
+
 func (db *roDB) GetRole(name string) (string, error) {
 	return db.db.GetRole(name)
 }
diff --git a/lib/database/users.go b/lib/database/users.go
index 8a7591c..532f68e 100644
--- a/lib/database/users.go
+++ b/lib/database/users.go
@@ -45,6 +45,37 @@ func (db *pgDB) AddUser(name string, pass string) error {
 	return db.AddRawUser(name, hpass, salt, "")
 }
 
+
+func (db *pgDB) SetAdminUser(name string, pass string) error {
+
+	if !validAdminUserName(name) {
+		return errors.New("Invalid admin user name. Username needs to have at least 3 characters and can only be letters, numbers, '-', '_' and '.'.")
+	}
+
+	num, err := db.sql.Model(&User{}).Where("lower(username) = lower(?)", name).Count()
+	if err != nil {
+		log.Error("Error on database checking user ", name, ": ", err)
+		return errors.New("An error happen on the database")
+	}
+	if num != 0 {
+		err := db.SetRole(name, "admin")
+		if err != nil {
+			log.Error("Error updating admin user ", name, ": ", err)
+			return errors.New("Error updating admin user")
+		}
+		return db.SetPassword(name, pass)
+	}
+
+	hpass, salt, err := hashPass(pass)
+	if err != nil {
+		log.Error("Error hashing password: ", err)
+		return errors.New("An error happen storing the password")
+	}
+	return db.AddRawUser(name, hpass, salt, "admin")
+
+}
+
+
 func (db *pgDB) AddRawUser(name string, hpass []byte, salt []byte, role string) error {
 	u := User{
 		Username: name,
@@ -120,13 +151,20 @@ func (db *pgDB) getUser(name string) (User, error) {
 	return user, err
 }
 
-func validUserName(name string) bool {
+func validAdminUserName(name string) bool {
 	if len(name) < 3 {
 		return false
 	}
 	if !alphaNumeric(name) {
 		return false
 	}
+	return true
+}
+
+func validUserName(name string) bool {
+	if !validAdminUserName(name) {
+		return false
+	}
 	switch name {
 	case "", "admin", "webmaster", "postmaster", "info", "root", "news", "trantor", "librarian", "library", "imperial":
 		return false
diff --git a/main.go b/main.go
index 65e39fb..37b1587 100644
--- a/main.go
+++ b/main.go
@@ -23,6 +23,8 @@ func main() {
 		assetsPath   = flag.String("assets", ".", "Path of the assets (templates, css, js, img)")
 		hostname     = flag.String("hostname", "xfmro77i3lixucja.onion", "Hostname of the website")
 		loggerConfig = flag.String("logger-conf", "logger.xml", "xml configuration of the logger")
+		setAdminUser = flag.String("set-admin-user", "", "create/update this user to be admin if set-admin-pass is also specified")
+		setAdminPass = flag.String("set-admin-pass", "", "create/update admin user password if set-admin-user is also specified")
 		ro           = flag.Bool("ro", false, "read only mode")
 	)
 	flag.Parse()
@@ -40,6 +42,11 @@ func main() {
 		Password: *dbPassword,
 		Name:     *dbName,
 	})
+	if err == nil {
+		if *setAdminUser != "" && *setAdminPass != "" {
+			db.SetAdminUser(*setAdminUser, *setAdminPass)
+		}
+	}
 	if err != nil {
 		log.Critical("Problem initializing database: ", err)
 		os.Exit(1)