diff --git a/plugins/pagerduty/src/api/client.ts b/plugins/pagerduty/src/api/client.ts
index bf6835ec2a..7f9f3d6c59 100644
--- a/plugins/pagerduty/src/api/client.ts
+++ b/plugins/pagerduty/src/api/client.ts
@@ -108,14 +108,13 @@ export class PagerDutyClient implements PagerDutyApi {
     return await this.getByUrl<ChangeEventsResponse>(url);
   }
 
-  async getOnCallByPolicyId(policyId: string): Promise<OnCall[]> {
+  async getOnCallByPolicyId(policyId: string): Promise<OnCallsResponse> {
     const params = `time_zone=UTC&include[]=users&escalation_policy_ids[]=${policyId}`;
     const url = `${await this.config.discoveryApi.getBaseUrl(
       'proxy',
     )}/pagerduty/oncalls?${params}`;
-    const { oncalls } = await this.getByUrl<OnCallsResponse>(url);
 
-    return oncalls;
+    return await this.getByUrl<OnCallsResponse>(url);
   }
 
   triggerAlarm(request: TriggerAlarmRequest): Promise<Response> {
diff --git a/plugins/pagerduty/src/api/types.ts b/plugins/pagerduty/src/api/types.ts
index 8914c4ed97..d2ab0290d3 100644
--- a/plugins/pagerduty/src/api/types.ts
+++ b/plugins/pagerduty/src/api/types.ts
@@ -50,7 +50,7 @@ export interface PagerDutyApi {
    * Fetches the list of users in an escalation policy.
    *
    */
-  getOnCallByPolicyId(policyId: string): Promise<OnCall[]>;
+  getOnCallByPolicyId(policyId: string): Promise<OnCallsResponse>;
 
   /**
    * Triggers an incident to whoever is on-call.
diff --git a/plugins/pagerduty/src/components/Escalation/Escalation.test.tsx b/plugins/pagerduty/src/components/Escalation/Escalation.test.tsx
index 47f18002fe..33e8865f59 100644
--- a/plugins/pagerduty/src/components/Escalation/Escalation.test.tsx
+++ b/plugins/pagerduty/src/components/Escalation/Escalation.test.tsx
@@ -30,7 +30,7 @@ describe('Escalation', () => {
   it('Handles an empty response', async () => {
     mockPagerDutyApi.getOnCallByPolicyId = jest
       .fn()
-      .mockImplementationOnce(async () => []);
+      .mockImplementationOnce(async () => ({ oncalls: [] }));
 
     const { getByText, queryByTestId } = render(
       wrapInTestApp(
@@ -48,17 +48,19 @@ describe('Escalation', () => {
   it('Render a list of users', async () => {
     mockPagerDutyApi.getOnCallByPolicyId = jest
       .fn()
-      .mockImplementationOnce(async () => [
-        {
-          user: {
-            name: 'person1',
-            id: 'p1',
-            summary: 'person1',
-            email: 'person1@example.com',
-            html_url: 'http://a.com/id1',
-          } as User,
-        },
-      ]);
+      .mockImplementationOnce(async () => ({
+        oncalls: [
+          {
+            user: {
+              name: 'person1',
+              id: 'p1',
+              summary: 'person1',
+              email: 'person1@example.com',
+              html_url: 'http://a.com/id1',
+            } as User,
+          },
+        ],
+      }));
 
     const { getByText, queryByTestId } = render(
       wrapInTestApp(
diff --git a/plugins/pagerduty/src/components/Escalation/EscalationPolicy.tsx b/plugins/pagerduty/src/components/Escalation/EscalationPolicy.tsx
index 704887be58..8602733ee3 100644
--- a/plugins/pagerduty/src/components/Escalation/EscalationPolicy.tsx
+++ b/plugins/pagerduty/src/components/Escalation/EscalationPolicy.tsx
@@ -37,7 +37,7 @@ export const EscalationPolicy = ({ policyId }: Props) => {
     loading,
     error,
   } = useAsync(async () => {
-    const oncalls = await api.getOnCallByPolicyId(policyId);
+    const { oncalls } = await api.getOnCallByPolicyId(policyId);
     const usersItem = oncalls
       .sort((a, b) => a.escalation_level - b.escalation_level)
       .map(oncall => oncall.user);
diff --git a/plugins/pagerduty/src/components/PagerDutyCard/index.test.tsx b/plugins/pagerduty/src/components/PagerDutyCard/index.test.tsx
index dce1bb536a..9a6e9a3ed2 100644
--- a/plugins/pagerduty/src/components/PagerDutyCard/index.test.tsx
+++ b/plugins/pagerduty/src/components/PagerDutyCard/index.test.tsx
@@ -91,7 +91,7 @@ const service: Service = {
 
 const mockPagerDutyApi: Partial<PagerDutyClient> = {
   getServiceByEntity: async () => ({ service }),
-  getOnCallByPolicyId: async () => [],
+  getOnCallByPolicyId: async () => ({ oncalls: [] }),
   getIncidentsByServiceId: async () => ({ incidents: [] }),
 };