diff --git a/x-pack/plugins/endpoint/public/applications/endpoint/store/policy_details/reducer.ts b/x-pack/plugins/endpoint/public/applications/endpoint/store/policy_details/reducer.ts
index fb3e26157ef32a..3931f4b10af994 100644
--- a/x-pack/plugins/endpoint/public/applications/endpoint/store/policy_details/reducer.ts
+++ b/x-pack/plugins/endpoint/public/applications/endpoint/store/policy_details/reducer.ts
@@ -90,7 +90,7 @@ export const policyDetailsReducer: Reducer<PolicyDetailsState, AppAction> = (
 
   if (action.type === 'userChangedPolicyConfig') {
     const newState = { ...state, policyItem: { ...(state.policyItem as PolicyData) } };
-    const newPolicy = (newState.policyItem.inputs[0].config.policy.value = {
+    const newPolicy: any = (newState.policyItem.inputs[0].config.policy.value = {
       ...fullPolicy(state),
     });
 
diff --git a/x-pack/plugins/endpoint/public/applications/endpoint/types.ts b/x-pack/plugins/endpoint/public/applications/endpoint/types.ts
index dda50847169e7f..c7a29f03d1b5a1 100644
--- a/x-pack/plugins/endpoint/public/applications/endpoint/types.ts
+++ b/x-pack/plugins/endpoint/public/applications/endpoint/types.ts
@@ -97,7 +97,7 @@ export interface PolicyListState {
 /**
  * Policy details store state
  */
-export interface PolicyDetailsState {
+export type PolicyDetailsState = Immutable<{
   /** A single policy item  */
   policyItem?: PolicyData;
   /** API error if loading data failed */
@@ -112,7 +112,7 @@ export interface PolicyDetailsState {
     success: boolean;
     error?: ServerApiError;
   };
-}
+}>;
 
 /**
  * Endpoint Policy configuration