diff --git a/conf/configuration.go b/conf/configuration.go
index 5ee4b5dde..635faf121 100644
--- a/conf/configuration.go
+++ b/conf/configuration.go
@@ -22,6 +22,8 @@ type nd struct {
 	SessionTimeout string `default:"30m"`
 	BaseURL        string `default:""`
 
+	UILoginBackgroundURL string `default:"https://source.unsplash.com/random/1600x900?music"`
+
 	IgnoredArticles string `default:"The El La Los Las Le Les Os As O A"`
 	IndexGroups     string `default:"A B C D E F G H I J K L M N O P Q R S T U V W X-Z(XYZ) [Unknown]([)"`
 
diff --git a/server/app/serve_index.go b/server/app/serve_index.go
index f2b175cdc..56f1666cc 100644
--- a/server/app/serve_index.go
+++ b/server/app/serve_index.go
@@ -30,8 +30,9 @@ func ServeIndex(ds model.DataStore, fs http.FileSystem) http.HandlerFunc {
 		}
 		t, _ = t.Parse(string(indexStr))
 		appConfig := map[string]interface{}{
-			"firstTime": firstTime,
-			"baseURL":   strings.TrimSuffix(conf.Server.BaseURL, "/"),
+			"firstTime":          firstTime,
+			"baseURL":            strings.TrimSuffix(conf.Server.BaseURL, "/"),
+			"loginBackgroundURL": conf.Server.UILoginBackgroundURL,
 		}
 		j, _ := json.Marshal(appConfig)
 		data := map[string]interface{}{
diff --git a/server/app/serve_index_test.go b/server/app/serve_index_test.go
index 20f914ee8..bf68b000a 100644
--- a/server/app/serve_index_test.go
+++ b/server/app/serve_index_test.go
@@ -22,6 +22,7 @@ var _ = Describe("ServeIndex", func() {
 
 	BeforeEach(func() {
 		ds = &persistence.MockDataStore{MockedUser: mockUser}
+		conf.Server.UILoginBackgroundURL = ""
 	})
 
 	It("adds app_config to index.html", func() {
@@ -57,7 +58,7 @@ var _ = Describe("ServeIndex", func() {
 		Expect(config).To(HaveKeyWithValue("firstTime", false))
 	})
 
-	It("sets baseURL ", func() {
+	It("sets baseURL", func() {
 		conf.Server.BaseURL = "base_url_test"
 		r := httptest.NewRequest("GET", "/index.html", nil)
 		w := httptest.NewRecorder()
@@ -67,6 +68,17 @@ var _ = Describe("ServeIndex", func() {
 		config := extractAppConfig(w.Body.String())
 		Expect(config).To(HaveKeyWithValue("baseURL", "base_url_test"))
 	})
+
+	It("sets the uiLoginBackgroundURL", func() {
+		conf.Server.UILoginBackgroundURL = "my_background_url"
+		r := httptest.NewRequest("GET", "/index.html", nil)
+		w := httptest.NewRecorder()
+
+		ServeIndex(ds, fs)(w, r)
+
+		config := extractAppConfig(w.Body.String())
+		Expect(config).To(HaveKeyWithValue("loginBackgroundURL", "my_background_url"))
+	})
 })
 
 var appConfigRegex = regexp.MustCompile(`(?m)window.__APP_CONFIG__="([^"]*)`)