diff --git a/src/seed_tools/utils/seed_validation.test.ts b/src/seed_tools/utils/seed_validation.test.ts
index ff215233..3a4ef2fb 100644
--- a/src/seed_tools/utils/seed_validation.test.ts
+++ b/src/seed_tools/utils/seed_validation.test.ts
@@ -31,7 +31,7 @@ describe('getSeedErrors', () => {
       } else {
         study.filter = {};
       }
-      study.filter.platform = study.filter.platform ?? ['LINUX'];
+      study.filter.platform = study.filter.platform ?? ['PLATFORM_LINUX'];
       study.filter.channel = study.filter.channel ?? ['BETA'];
       return Study.fromJson(study, {
         ignoreUnknownFields: false,
@@ -184,19 +184,19 @@ describe('getSeedErrors', () => {
       // platform tests
       {
         filter1: {
-          platform: ['WINDOWS', 'MAC'],
+          platform: ['PLATFORM_WINDOWS', 'PLATFORM_MAC'],
         },
         filter2: {
-          platform: ['MAC'],
+          platform: ['PLATFORM_MAC'],
         },
         expectedOverlapped: true,
       },
       {
         filter1: {
-          platform: ['WINDOWS'],
+          platform: ['PLATFORM_WINDOWS'],
         },
         filter2: {
-          platform: ['MAC'],
+          platform: ['PLATFORM_MAC'],
         },
         expectedOverlapped: false,
       },
diff --git a/src/seed_tools/utils/study_json_utils.test.ts b/src/seed_tools/utils/study_json_utils.test.ts
index b645bce1..9c29d313 100644
--- a/src/seed_tools/utils/study_json_utils.test.ts
+++ b/src/seed_tools/utils/study_json_utils.test.ts
@@ -44,7 +44,7 @@ describe('stringifyStudies', () => {
         name: 'study',
         filter: {
           channel: ['CANARY', 'BETA', 'STABLE'],
-          platform: ['LINUX', 'MAC'],
+          platform: ['PLATFORM_LINUX', 'PLATFORM_MAC'],
         },
       },
       { ignoreUnknownFields: false },
@@ -112,7 +112,7 @@ describe('stringifyStudies', () => {
         filter: {
           start_date: Math.floor(startDate.getTime() / 1000),
           channel: ['CANARY', 'BETA', 'STABLE'],
-          platform: ['LINUX', 'MAC'],
+          platform: ['PLATFORM_LINUX', 'PLATFORM_MAC'],
         },
       },
       { ignoreUnknownFields: false },
@@ -127,7 +127,7 @@ describe('stringifyStudies', () => {
         filter: {
           start_date: startDate.toISOString(),
           channel: ['CANARY', 'BETA', 'STABLE'],
-          platform: ['LINUX', 'MAC'],
+          platform: ['PLATFORM_LINUX', 'PLATFORM_MAC'],
         },
       },
     ]);
diff --git a/src/seed_tools/utils/study_validation.test.ts b/src/seed_tools/utils/study_validation.test.ts
index c6f40099..4805f295 100644
--- a/src/seed_tools/utils/study_validation.test.ts
+++ b/src/seed_tools/utils/study_validation.test.ts
@@ -30,7 +30,7 @@ describe('getStudyErrors', () => {
       filter: {
         locale: ['en'],
         channel: ['CANARY'],
-        platform: ['WINDOWS'],
+        platform: ['PLATFORM_WINDOWS'],
         start_date: Math.floor(new Date('2022-01-01').getTime() / 1000),
         end_date: Math.floor(new Date('2022-02-01').getTime() / 1000),
         min_version: '1.0',
@@ -141,7 +141,7 @@ describe('getStudyErrors', () => {
         },
       ],
       filter: {
-        platform: ['LINUX'],
+        platform: ['PLATFORM_LINUX'],
         channel: ['BETA'],
       },
     });
@@ -263,7 +263,7 @@ describe('getStudyErrors', () => {
         },
       ],
       filter: {
-        platform: ['LINUX'],
+        platform: ['PLATFORM_LINUX'],
         channel: ['BETA'],
       },
     });
@@ -286,7 +286,7 @@ describe('getStudyErrors', () => {
           },
         ],
         filter: {
-          platform: ['LINUX'],
+          platform: ['PLATFORM_LINUX'],
           channel: ['BETA'],
         },
       });
@@ -362,7 +362,7 @@ describe('getStudyErrors', () => {
           },
         ],
         filter: {
-          platform: ['LINUX'],
+          platform: ['PLATFORM_LINUX'],
           channel: ['BETA'],
         },
       };
@@ -543,7 +543,7 @@ describe('getStudyErrors', () => {
         },
       ],
       filter: {
-        platform: ['LINUX'],
+        platform: ['PLATFORM_LINUX'],
         channel: ['BETA'],
         locale: [],
         exclude_locale: ['en'],
@@ -634,7 +634,7 @@ describe('getStudyErrors', () => {
           probability_weight: 100,
         },
       ],
-      filter: { ...filter, platform: ['LINUX'], channel: ['BETA'] },
+      filter: { ...filter, platform: ['PLATFORM_LINUX'], channel: ['BETA'] },
     });
 
     expect(study_validation.getStudyErrors(study, studyFileBaseName)).toEqual(
@@ -693,7 +693,7 @@ describe('getStudyErrors', () => {
             probability_weight: 100,
           },
         ],
-        filter: { ...filter, platform: ['LINUX'] },
+        filter: { ...filter, platform: ['PLATFORM_LINUX'] },
       });
 
       expect(
@@ -702,23 +702,24 @@ describe('getStudyErrors', () => {
     },
   );
 
-  test.each([{}, { platform: [] }, { platform: ['LINUX', 'LINUX'] }])(
-    'should error if platform is invalid',
-    (filter: any) => {
-      const study = Study.fromJson({
-        name: 'study',
-        experiment: [
-          {
-            name: 'experiment1',
-            probability_weight: 100,
-          },
-        ],
-        filter: { ...filter, channel: ['BETA'] },
-      });
+  test.each([
+    {},
+    { platform: [] },
+    { platform: ['PLATFORM_LINUX', 'PLATFORM_LINUX'] },
+  ])('should error if platform is invalid', (filter: any) => {
+    const study = Study.fromJson({
+      name: 'study',
+      experiment: [
+        {
+          name: 'experiment1',
+          probability_weight: 100,
+        },
+      ],
+      filter: { ...filter, channel: ['BETA'] },
+    });
 
-      expect(
-        study_validation.getStudyErrors(study, studyFileBaseName),
-      ).toContainEqual(expect.stringMatching(/(P|p)latform/));
-    },
-  );
+    expect(
+      study_validation.getStudyErrors(study, studyFileBaseName),
+    ).toContainEqual(expect.stringMatching(/(P|p)latform/));
+  });
 });