diff --git a/src/common/notifications.interface.ts b/src/common/notifications.interface.ts
index aa4df41..577aaca 100644
--- a/src/common/notifications.interface.ts
+++ b/src/common/notifications.interface.ts
@@ -140,7 +140,7 @@ export interface NamedNotificationsProviderFactory
      * @param name - Name of scope for notifications provider
      * @param customNotificationsToken - Optional type or token that should be provided for custom notifications
      */
-    (name: string, customNotificationsToken?: Function | Type<any> | InjectionToken<unknown>): FactoryProvider|[FactoryProvider, ValueProvider];
+    (name: string, customNotificationsToken?: Function | Type<any> | InjectionToken<unknown> | string): FactoryProvider|[FactoryProvider, ValueProvider];
 }
 
 /**
diff --git a/src/common/notifications.service.ts b/src/common/notifications.service.ts
index 4b6e990..8b3a805 100644
--- a/src/common/notifications.service.ts
+++ b/src/common/notifications.service.ts
@@ -155,7 +155,7 @@ Object.defineProperty(GLOBAL_NOTIFICATIONS_DEFINITION, nameof<GlobalNotification
 {
     get()
     {
-        return (name: string, customNotificationsToken?: Function | Type<any> | InjectionToken<unknown>): FactoryProvider =>
+        return (name: string, customNotificationsToken?: Function | Type<any> | InjectionToken<unknown> | string): FactoryProvider =>
         {
             return {
                 provide: customNotificationsToken ?? GlobalNotificationsService,
@@ -201,7 +201,7 @@ Object.defineProperty(LOCAL_NOTIFICATIONS_DEFINITION, nameof<LocalNotificationsP
 {
     get()
     {
-        return (name: string = generateId(6), customNotificationsToken?: Function | Type<any> | InjectionToken<unknown>): [FactoryProvider, ValueProvider] =>
+        return (name: string = generateId(6), customNotificationsToken?: Function | Type<any> | InjectionToken<unknown> | string): [FactoryProvider, ValueProvider] =>
         {
             const scopeName = `${LOCAL_NOTIFICATIONS_SCOPE_NAME}-${name}`;
 
diff --git a/src/misc/providers.ts b/src/misc/providers.ts
index a21f4b3..d816e9f 100644
--- a/src/misc/providers.ts
+++ b/src/misc/providers.ts
@@ -8,7 +8,7 @@ import {GLOBAL_NOTIFICATIONS, LOCAL_NOTIFICATIONS} from '../common/notifications
  * @param name - Name for global notifications scope
  * @param customNotificationsToken - Optional type or token that should be provided for custom notifications
  */
-export function provideGlobalNotifications(name?: string, customNotificationsToken?: Function | Type<any> | InjectionToken<unknown>): EnvironmentProviders
+export function provideGlobalNotifications(name?: string, customNotificationsToken?: Function | Type<any> | InjectionToken<unknown> | string): EnvironmentProviders
 {
     if(isPresent(name))
     {
@@ -29,7 +29,7 @@ export function provideGlobalNotifications(name?: string, customNotificationsTok
  * @param name - Name for local notifications scope
  * @param customNotificationsToken - Optional type or token that should be provided for custom notifications
  */
-export function provideLocalNotifications(name?: string, customNotificationsToken?: Function | Type<any> | InjectionToken<unknown>): Provider[]
+export function provideLocalNotifications(name?: string, customNotificationsToken?: Function | Type<any> | InjectionToken<unknown> | string): Provider[]
 {
     if(isPresent(name))
     {