diff --git a/admin/src/graphql/deleteUser.js b/admin/src/graphql/deleteUser.js
index 9e3606bd7..3b9bc73b2 100644
--- a/admin/src/graphql/deleteUser.js
+++ b/admin/src/graphql/deleteUser.js
@@ -1,7 +1,7 @@
 import gql from 'graphql-tag'
 
 export const deleteUser = gql`
-  mutation ($userId: Int!) {
+  mutation ($userId: Float!) {
     deleteUser(userId: $userId)
   }
 `
diff --git a/backend/src/auth/RIGHTS.ts b/backend/src/auth/RIGHTS.ts
index cca4365fe..b7b23c931 100644
--- a/backend/src/auth/RIGHTS.ts
+++ b/backend/src/auth/RIGHTS.ts
@@ -26,4 +26,5 @@ export enum RIGHTS {
   DELETE_PENDING_CREATION = 'DELETE_PENDING_CREATION',
   CONFIRM_PENDING_CREATION = 'CONFIRM_PENDING_CREATION',
   SEND_ACTIVATION_EMAIL = 'SEND_ACTIVATION_EMAIL',
+  DELETE_USER = 'DELETE_USER',
 }
diff --git a/backend/src/graphql/resolver/AdminResolver.ts b/backend/src/graphql/resolver/AdminResolver.ts
index fd12af0f8..484fad7d8 100644
--- a/backend/src/graphql/resolver/AdminResolver.ts
+++ b/backend/src/graphql/resolver/AdminResolver.ts
@@ -95,6 +95,25 @@ export class AdminResolver {
     }
   }
 
+  @Authorized([RIGHTS.DELETE_USER])
+  @Mutation(() => Boolean)
+  async deleteUser(@Arg('userId') userId: number, @Ctx() context: any): Promise<boolean> {
+    const user = await User.findOne({ id: userId })
+    // user exists ?
+    if (!user) {
+      throw new Error(`Could not find user with userId: ${userId}`)
+    }
+    // moderator user disabled own account?
+    const userRepository = getCustomRepository(UserRepository)
+    const moderatorUser = await userRepository.findByPubkeyHex(context.pubKey)
+    if (moderatorUser.id === userId) {
+      throw new Error('Moderator can not delete his own account!')
+    }
+    // soft-delete user
+    await user.softRemove()
+    return true
+  }
+
   @Authorized([RIGHTS.CREATE_PENDING_CREATION])
   @Mutation(() => [Number])
   async createPendingCreation(