diff --git a/README.md b/README.md
index 3a1023c6d..4219e4ed0 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ Gogs(Go Git Service) is a GitHub-like clone in the Go Programming Language.
 
 Since we choose to use pure Go implementation of Git manipulation, Gogs certainly supports **ALL platforms**  that Go supports, including Linux, Max OS X, and Windows with **ZERO** dependency.
 
-##### Current version: 0.1.1 Alpha
+##### Current version: 0.1.4 Alpha
 
 ## Purpose
 
diff --git a/gogs.go b/gogs.go
index d32e3908c..a600c53d1 100644
--- a/gogs.go
+++ b/gogs.go
@@ -20,7 +20,7 @@ import (
 // Test that go1.1 tag above is included in builds. main.go refers to this definition.
 const go11tag = true
 
-const APP_VER = "0.1.2.0320.1"
+const APP_VER = "0.1.3.0320.1"
 
 func init() {
 	base.AppVer = APP_VER
diff --git a/models/repo.go b/models/repo.go
index 052341ff6..bcbc58678 100644
--- a/models/repo.go
+++ b/models/repo.go
@@ -12,6 +12,7 @@ import (
 	"os"
 	"path"
 	"path/filepath"
+	"regexp"
 	"strings"
 	"sync"
 	"time"
@@ -82,6 +83,7 @@ var (
 	ErrRepoAlreadyExist = errors.New("Repository already exist")
 	ErrRepoNotExist     = errors.New("Repository does not exist")
 	ErrRepoFileNotExist = errors.New("Target Repo file does not exist")
+	ErrRepoNameIllegal  = errors.New("Repository name contains illegal characters")
 )
 
 func init() {
@@ -104,6 +106,15 @@ func init() {
 			os.Exit(2)
 		}
 	}
+
+	// Initialize illegal patterns.
+	for i := range illegalPatterns[1:] {
+		pattern := ""
+		for j := range illegalPatterns[i+1] {
+			pattern += "[" + string(illegalPatterns[i+1][j]-32) + string(illegalPatterns[i+1][j]) + "]"
+		}
+		illegalPatterns[i+1] = pattern
+	}
 }
 
 // IsRepositoryExist returns true if the repository with given name under user has already existed.
@@ -120,8 +131,28 @@ func IsRepositoryExist(user *User, repoName string) (bool, error) {
 	return s.IsDir(), nil
 }
 
+var (
+	// Define as all lower case!!
+	illegalPatterns = []string{"[.][Gg][Ii][Tt]", "user", "help", "stars", "issues", "pulls", "commits", "admin", "repo", "template"}
+)
+
+// IsLegalName returns false if name contains illegal characters.
+func IsLegalName(repoName string) bool {
+	for _, pattern := range illegalPatterns {
+		has, _ := regexp.MatchString(pattern, repoName)
+		if has {
+			return false
+		}
+	}
+	return true
+}
+
 // CreateRepository creates a repository for given user or orgnaziation.
 func CreateRepository(user *User, repoName, desc, repoLang, license string, private bool, initReadme bool) (*Repository, error) {
+	if !IsLegalName(repoName) {
+		return nil, ErrRepoNameIllegal
+	}
+
 	isExist, err := IsRepositoryExist(user, repoName)
 	if err != nil {
 		return nil, err
diff --git a/models/user.go b/models/user.go
index fd89af6b3..990e1954a 100644
--- a/models/user.go
+++ b/models/user.go
@@ -79,6 +79,7 @@ var (
 	ErrUserAlreadyExist = errors.New("User already exist")
 	ErrUserNotExist     = errors.New("User does not exist")
 	ErrEmailAlreadyUsed = errors.New("E-mail already used")
+	ErrUserNameIllegal  = errors.New("User name contains illegal characters")
 )
 
 // IsUserExist checks if given user name exist,
@@ -108,6 +109,10 @@ func GetUserSalt() string {
 
 // RegisterUser creates record of a new user.
 func RegisterUser(user *User) (*User, error) {
+	if !IsLegalName(user.Name) {
+		return nil, ErrUserNameIllegal
+	}
+
 	isExist, err := IsUserExist(user.Name)
 	if err != nil {
 		return nil, err
diff --git a/routers/repo/repo.go b/routers/repo/repo.go
index 556cc4343..c83a6df52 100644
--- a/routers/repo/repo.go
+++ b/routers/repo/repo.go
@@ -31,6 +31,9 @@ func Create(ctx *middleware.Context, form auth.CreateRepoForm) {
 	} else if err == models.ErrRepoAlreadyExist {
 		ctx.RenderWithErr("Repository name has already been used", "repo/create", &form)
 		return
+	} else if err == models.ErrRepoNameIllegal {
+		ctx.RenderWithErr(models.ErrRepoNameIllegal.Error(), "repo/create", &form)
+		return
 	}
 	ctx.Handle(200, "repo.Create", err)
 }
diff --git a/routers/repo/single.go b/routers/repo/single.go
index f1b15ccee..eab49be91 100644
--- a/routers/repo/single.go
+++ b/routers/repo/single.go
@@ -217,6 +217,11 @@ func Setting(ctx *middleware.Context, params martini.Params) {
 		title = t
 	}
 
+	if len(params["branchname"]) == 0 {
+		params["branchname"] = "master"
+	}
+
+	ctx.Data["Branchname"] = params["branchname"]
 	ctx.Data["Title"] = title + " - settings"
 	ctx.HTML(200, "repo/setting")
 }
diff --git a/routers/user/user.go b/routers/user/user.go
index be2c4d383..ea6922591 100644
--- a/routers/user/user.go
+++ b/routers/user/user.go
@@ -139,11 +139,13 @@ func SignUp(ctx *middleware.Context, form auth.RegisterForm) {
 
 	var err error
 	if u, err = models.RegisterUser(u); err != nil {
-		switch err.Error() {
-		case models.ErrUserAlreadyExist.Error():
+		switch err {
+		case models.ErrUserAlreadyExist:
 			ctx.RenderWithErr("Username has been already taken", "user/signup", &form)
-		case models.ErrEmailAlreadyUsed.Error():
+		case models.ErrEmailAlreadyUsed:
 			ctx.RenderWithErr("E-mail address has been already used", "user/signup", &form)
+		case models.ErrUserNameIllegal:
+			ctx.RenderWithErr(models.ErrRepoNameIllegal.Error(), "user/signup", &form)
 		default:
 			ctx.Handle(200, "user.SignUp", err)
 		}