diff --git a/public/app/plugins/datasource/prometheus/datasource.tsx b/public/app/plugins/datasource/prometheus/datasource.tsx
index a29e83e329f..389230399f8 100644
--- a/public/app/plugins/datasource/prometheus/datasource.tsx
+++ b/public/app/plugins/datasource/prometheus/datasource.tsx
@@ -60,7 +60,6 @@ import {
   PromOptions,
   PromQuery,
   PromQueryRequest,
-  PromQueryType,
   PromScalarData,
   PromVectorData,
 } from './types';
@@ -410,7 +409,6 @@ export class PrometheusDatasource
   processTargetV2(target: PromQuery, request: DataQueryRequest<PromQuery>) {
     const processedTarget = {
       ...target,
-      queryType: PromQueryType.timeSeriesQuery,
       exemplar: this.shouldRunExemplarQuery(target, request),
       requestId: request.panelId + target.refId,
       // We need to pass utcOffsetSec to backend to calculate aligned range
@@ -763,7 +761,6 @@ export class PrometheusDatasource
       instant: false,
       exemplar: false,
       interval: step,
-      queryType: PromQueryType.timeSeriesQuery,
       refId: 'X',
       datasource: this.getRef(),
     };
diff --git a/public/app/plugins/datasource/prometheus/types.ts b/public/app/plugins/datasource/prometheus/types.ts
index 7c3093859bc..00920fa8c33 100644
--- a/public/app/plugins/datasource/prometheus/types.ts
+++ b/public/app/plugins/datasource/prometheus/types.ts
@@ -36,10 +36,6 @@ export interface PromOptions extends DataSourceJsonData {
   prometheusVersion?: string;
 }
 
-export enum PromQueryType {
-  timeSeriesQuery = 'timeSeriesQuery',
-}
-
 export type ExemplarTraceIdDestination = {
   name: string;
   url?: string;