diff --git a/node/src/gql/mutation/me/create-mentor-config.ts b/node/src/gql/mutation/me/create-mentor-config.ts
index 670b5a8..d1cf117 100644
--- a/node/src/gql/mutation/me/create-mentor-config.ts
+++ b/node/src/gql/mutation/me/create-mentor-config.ts
@@ -39,6 +39,7 @@ export const mentorConfigCreateUpdate = {
       {
         $set: {
           subjects: args.mentorConfig.subjects,
+          lockedToSubjects: args.mentorConfig.lockedToSubjects,
           publiclyVisible: args.mentorConfig.publiclyVisible,
           orgPermissions: args.mentorConfig.orgPermissions,
           mentorType: args.mentorConfig.mentorType,
diff --git a/node/src/models/MentorConfig.ts b/node/src/models/MentorConfig.ts
index 791b962..bc6edd3 100644
--- a/node/src/models/MentorConfig.ts
+++ b/node/src/models/MentorConfig.ts
@@ -24,6 +24,7 @@ import { OrgPermissionInputType } from '../gql/mutation/me/mentor-update-privacy
 export interface MentorConfig extends Document {
   configId: string;
   subjects: string[];
+  lockedToSubjects: boolean;
   publiclyVisible: boolean;
   mentorType: MentorType;
   orgPermissions: OrgPermissionProps[];
@@ -44,6 +45,7 @@ export const MentorConfigSchema = new Schema(
   {
     configId: { type: String, default: '' },
     subjects: { type: [String], default: [] },
+    lockedToSubjects: { type: Boolean, default: false },
     publiclyVisible: { type: Boolean, default: false },
     mentorType: { type: String },
     orgPermissions: { type: [OrgPermissionSchema], default: [] },
@@ -66,6 +68,7 @@ export const MentorConfigInputType = new GraphQLInputObjectType({
   fields: {
     configId: { type: GraphQLString },
     subjects: { type: GraphQLList(GraphQLString) },
+    lockedToSubjects: { type: GraphQLBoolean },
     publiclyVisible: { type: GraphQLBoolean },
     mentorType: { type: GraphQLString },
     orgPermissions: { type: GraphQLList(OrgPermissionInputType) },
@@ -88,6 +91,7 @@ export const MentorConfigType = new GraphQLObjectType({
   fields: {
     configId: { type: GraphQLString },
     subjects: { type: GraphQLList(GraphQLString) },
+    lockedToSubjects: { type: GraphQLBoolean },
     publiclyVisible: { type: GraphQLBoolean },
     mentorType: { type: GraphQLString },
     orgPermissions: { type: GraphQLList(OrgPermissionType) },
diff --git a/node/test/graphql/mutation/me/create-mentor-config.spec.ts b/node/test/graphql/mutation/me/create-mentor-config.spec.ts
index 062b679..0c913c0 100644
--- a/node/test/graphql/mutation/me/create-mentor-config.spec.ts
+++ b/node/test/graphql/mutation/me/create-mentor-config.spec.ts
@@ -65,6 +65,7 @@ describe('Create Mentor Config', () => {
             mentorConfigCreateUpdate(mentorConfig: $mentorConfig){
               configId
               subjects
+              lockedToSubjects
               publiclyVisible
               orgPermissions {
                 org
@@ -88,6 +89,7 @@ describe('Create Mentor Config', () => {
           mentorConfig: {
             configId: 'TestConfigId',
             subjects: ['TestSubject'],
+            lockedToSubjects: true,
             publiclyVisible: true,
             orgPermissions: [
               {
@@ -121,6 +123,7 @@ describe('Create Mentor Config', () => {
             fetchMentorConfig(mentorConfigId: $mentorConfigId){
               configId
               subjects
+              lockedToSubjects
               publiclyVisible
               orgPermissions {
                 org
@@ -195,5 +198,8 @@ describe('Create Mentor Config', () => {
     expect(
       response2.body.data.fetchMentorConfig.recordTimeLimitSeconds
     ).to.equal(100);
+    expect(response2.body.data.fetchMentorConfig.lockedToSubjects).to.equal(
+      true
+    );
   });
 });