diff --git a/frontend/server/app.test.ts b/frontend/server/app.test.ts
index 7469267ba4d..3f051ab3c55 100644
--- a/frontend/server/app.test.ts
+++ b/frontend/server/app.test.ts
@@ -171,7 +171,7 @@ describe('UIServer apis', () => {
 
       const request = requests(app.start());
       request
-        .get('/artifacts/get?source=minio&bucket=ml-pipeline&encodedKey=hello%2Fworld.txt')
+        .get('/artifacts/get?source=minio&bucket=ml-pipeline&key=hello%2Fworld.txt')
         .expect(200, artifactContent, err => {
           expect(mockedMinioClient).toBeCalledWith({
             accessKey: 'minio',
@@ -205,7 +205,7 @@ describe('UIServer apis', () => {
 
       const request = requests(app.start());
       request
-        .get('/artifacts/get?source=s3&bucket=ml-pipeline&encodedKey=hello%2Fworld.txt')
+        .get('/artifacts/get?source=s3&bucket=ml-pipeline&key=hello%2Fworld.txt')
         .expect(200, artifactContent, err => {
           expect(mockedMinioClient).toBeCalledWith({
             accessKey: 'aws123',
@@ -237,7 +237,7 @@ describe('UIServer apis', () => {
 
       const request = requests(app.start());
       request
-        .get('/artifacts/get?source=s3&bucket=ml-pipeline&encodedKey=hello%2Fworld.txt')
+        .get('/artifacts/get?source=s3&bucket=ml-pipeline&key=hello%2Fworld.txt')
         .expect(200, artifactContent, err => {
           expect(mockedMinioClient).toBeCalledWith({
             accessKey: 'aws123',
@@ -263,7 +263,7 @@ describe('UIServer apis', () => {
 
       const request = requests(app.start());
       request
-        .get('/artifacts/get?source=http&bucket=ml-pipeline&encodedKey=hello%2Fworld.txt')
+        .get('/artifacts/get?source=http&bucket=ml-pipeline&key=hello%2Fworld.txt')
         .expect(200, artifactContent, err => {
           expect(mockedFetch).toBeCalledWith('http://foo.bar/ml-pipeline/hello/world.txt', {
             headers: {},
@@ -290,7 +290,7 @@ describe('UIServer apis', () => {
 
       const request = requests(app.start());
       request
-        .get('/artifacts/get?source=https&bucket=ml-pipeline&encodedKey=hello%2Fworld.txt')
+        .get('/artifacts/get?source=https&bucket=ml-pipeline&key=hello%2Fworld.txt')
         .expect(200, artifactContent, err => {
           expect(mockedFetch).toBeCalledWith('https://foo.bar/ml-pipeline/hello/world.txt', {
             headers: {
@@ -317,7 +317,7 @@ describe('UIServer apis', () => {
 
       const request = requests(app.start());
       request
-        .get('/artifacts/get?source=https&bucket=ml-pipeline&encodedKey=hello%2Fworld.txt')
+        .get('/artifacts/get?source=https&bucket=ml-pipeline&key=hello%2Fworld.txt')
         .set('Authorization', 'inheritedToken')
         .expect(200, artifactContent, err => {
           expect(mockedFetch).toBeCalledWith('https://foo.bar/ml-pipeline/hello/world.txt', {
@@ -346,7 +346,7 @@ describe('UIServer apis', () => {
 
       const request = requests(app.start());
       request
-        .get('/artifacts/get?source=gcs&bucket=ml-pipeline&encodedKey=hello%2Fworld.txt')
+        .get('/artifacts/get?source=gcs&bucket=ml-pipeline&key=hello%2Fworld.txt')
         .expect(200, artifactContent + '\n', done);
     });
   });
diff --git a/frontend/server/handlers/artifacts.ts b/frontend/server/handlers/artifacts.ts
index 0db2c67225d..88ca54e51ce 100644
--- a/frontend/server/handlers/artifacts.ts
+++ b/frontend/server/handlers/artifacts.ts
@@ -29,7 +29,7 @@ interface ArtifactsQueryStrings {
   /** bucket name. */
   bucket: string;
   /** artifact key/path that is uri encoded.  */
-  encodedKey: string;
+  key: string;
 }
 
 /**
@@ -44,7 +44,7 @@ export function getArtifactsHandler(artifactsConfigs: {
 }): Handler {
   const { aws, http, minio } = artifactsConfigs;
   return async (req, res) => {
-    const { source, bucket, encodedKey } = req.query as Partial<ArtifactsQueryStrings>;
+    const { source, bucket, key: encodedKey } = req.query as Partial<ArtifactsQueryStrings>;
     if (!source) {
       res.status(500).send('Storage source is missing from artifact request');
       return;