diff --git a/x-pack/plugins/apm/server/lib/transactions/get_anomaly_data/index.ts b/x-pack/plugins/apm/server/lib/transactions/get_anomaly_data/index.ts
index 9466a38e1bc0..27dd7c0f6970 100644
--- a/x-pack/plugins/apm/server/lib/transactions/get_anomaly_data/index.ts
+++ b/x-pack/plugins/apm/server/lib/transactions/get_anomaly_data/index.ts
@@ -12,29 +12,35 @@ import { anomalySeriesFetcher } from './fetcher';
 import { getMlBucketSize } from './get_ml_bucket_size';
 import { anomalySeriesTransform } from './transform';
 import { getMLJobIds } from '../../service_map/get_service_anomalies';
+import { getLatencyTimeseries } from '../get_latency_charts';
+import { PromiseReturnType } from '../../../../../observability/typings/common';
 
 export async function getAnomalySeries({
   serviceName,
   transactionType,
   transactionName,
-  timeSeriesDates,
+  latencyTimeseries,
   setup,
   logger,
 }: {
   serviceName: string;
   transactionType: string | undefined;
   transactionName: string | undefined;
-  timeSeriesDates: number[];
+  latencyTimeseries: PromiseReturnType<
+    typeof getLatencyTimeseries
+  >['latencyTimeseries'];
   setup: Setup & SetupTimeRange;
   logger: Logger;
 }) {
-  // don't fetch anomalies for transaction details page
-  if (transactionName) {
-    return;
-  }
+  const timeseriesDates = latencyTimeseries?.avg?.map(({ x }) => x);
 
-  // don't fetch anomalies without a type
-  if (!transactionType) {
+  /*
+   * don't fetch:
+   * - anomalies for transaction details page
+   * - anomalies without a type
+   * - timeseries is empty
+   */
+  if (transactionName || !transactionType || !timeseriesDates?.length) {
     return;
   }
 
@@ -94,7 +100,7 @@ export async function getAnomalySeries({
       esResponse,
       mlBucketSize,
       bucketSize,
-      timeSeriesDates,
+      timeseriesDates,
       jobId
     );
   }
diff --git a/x-pack/plugins/apm/server/routes/transactions.ts b/x-pack/plugins/apm/server/routes/transactions.ts
index 9666f7f62612..9b7a0981a4fe 100644
--- a/x-pack/plugins/apm/server/routes/transactions.ts
+++ b/x-pack/plugins/apm/server/routes/transactions.ts
@@ -154,13 +154,11 @@ export const transactionLatencyChatsRoute = createRoute({
       overallAvgDuration,
     } = await getLatencyTimeseries(options);
 
-    const anomalyTimeseries = latencyTimeseries
-      ? await getAnomalySeries({
-          ...options,
-          logger,
-          timeSeriesDates: latencyTimeseries.avg.map(({ x }) => x),
-        })
-      : null;
+    const anomalyTimeseries = await getAnomalySeries({
+      ...options,
+      logger,
+      latencyTimeseries,
+    });
 
     return { latencyTimeseries, overallAvgDuration, anomalyTimeseries };
   },