diff --git a/src/pybind/mgr/dashboard/frontend/src/app/ceph/block/iscsi-target-form/iscsi-target-form.component.spec.ts b/src/pybind/mgr/dashboard/frontend/src/app/ceph/block/iscsi-target-form/iscsi-target-form.component.spec.ts
index 29fc65aa22e..8d95a4808f6 100644
--- a/src/pybind/mgr/dashboard/frontend/src/app/ceph/block/iscsi-target-form/iscsi-target-form.component.spec.ts
+++ b/src/pybind/mgr/dashboard/frontend/src/app/ceph/block/iscsi-target-form/iscsi-target-form.component.spec.ts
@@ -351,8 +351,7 @@ describe('IscsiTargetFormComponent', () => {
       expect(req.request.body).toEqual({
         clients: [
           {
-            auth: { mutual_password: null, mutual_user: null, password: null, user: null },
-            cdIsInGroup: false,
+            auth: { mutual_password: '', mutual_user: '', password: '', user: '' },
             client_iqn: 'iqn.initiator',
             luns: []
           }
@@ -380,8 +379,7 @@ describe('IscsiTargetFormComponent', () => {
       expect(req.request.body).toEqual({
         clients: [
           {
-            auth: { mutual_password: null, mutual_user: null, password: null, user: null },
-            cdIsInGroup: false,
+            auth: { mutual_password: '', mutual_user: '', password: '', user: '' },
             client_iqn: 'iqn.initiator',
             luns: []
           }
diff --git a/src/pybind/mgr/dashboard/frontend/src/app/ceph/block/iscsi-target-form/iscsi-target-form.component.ts b/src/pybind/mgr/dashboard/frontend/src/app/ceph/block/iscsi-target-form/iscsi-target-form.component.ts
index 5737f485219..3d502663ca5 100644
--- a/src/pybind/mgr/dashboard/frontend/src/app/ceph/block/iscsi-target-form/iscsi-target-form.component.ts
+++ b/src/pybind/mgr/dashboard/frontend/src/app/ceph/block/iscsi-target-form/iscsi-target-form.component.ts
@@ -544,7 +544,7 @@ export class IscsiTargetFormComponent implements OnInit {
   }
 
   submit() {
-    const formValue = this.targetForm.value;
+    const formValue = _.cloneDeep(this.targetForm.value);
 
     const request = {
       target_iqn: this.targetForm.getValue('target_iqn'),
@@ -581,17 +581,18 @@ export class IscsiTargetFormComponent implements OnInit {
     if (request.acl_enabled) {
       formValue.initiators.forEach((initiator) => {
         if (!initiator.auth.user) {
-          initiator.auth.user = null;
+          initiator.auth.user = '';
         }
         if (!initiator.auth.password) {
-          initiator.auth.password = null;
+          initiator.auth.password = '';
         }
         if (!initiator.auth.mutual_user) {
-          initiator.auth.mutual_user = null;
+          initiator.auth.mutual_user = '';
         }
         if (!initiator.auth.mutual_password) {
-          initiator.auth.mutual_password = null;
+          initiator.auth.mutual_password = '';
         }
+        delete initiator.cdIsInGroup;
 
         const newLuns = [];
         initiator.luns.forEach((lun) => {