diff --git a/Websites/perf.webkit.org/public/include/manifest-generator.php b/Websites/perf.webkit.org/public/include/manifest-generator.php
index 782fcebc9bdc..046f476a8b5e 100644
--- a/Websites/perf.webkit.org/public/include/manifest-generator.php
+++ b/Websites/perf.webkit.org/public/include/manifest-generator.php
@@ -122,14 +122,13 @@ private function platforms($platform_table, $is_dashboard) {
         $platforms = array();
         if ($platform_table) {
             foreach ($platform_table as $platform_row) {
-                if (Database::is_true($platform_row['platform_hidden']))
-                    continue;
                 $id = $platform_row['platform_id'];
                 if (array_key_exists($id, $platform_metrics)) {
                     $platforms[$id] = array(
                         'name' => $platform_row['platform_name'],
                         'metrics' => $platform_metrics[$id]['metrics'],
                         'group' => $platform_row['platform_group'],
+                        'hidden' => Database::is_true($platform_row['platform_hidden']),
                         'lastModified' => $platform_metrics[$id]['last_modified']);
                 }
             }
diff --git a/Websites/perf.webkit.org/public/v3/components/pane-selector.js b/Websites/perf.webkit.org/public/v3/components/pane-selector.js
index 998af8eb27f6..439d979cd622 100644
--- a/Websites/perf.webkit.org/public/v3/components/pane-selector.js
+++ b/Websites/perf.webkit.org/public/v3/components/pane-selector.js
@@ -49,6 +49,8 @@ class PaneSelector extends ComponentBase {
 
             if (currentMetric) {
                 for (var platform of Platform.sortByName(Platform.all())) {
+                    if (platform.isHidden())
+                        continue;
                     if (platform.hasMetric(currentMetric))
                         this._platformItems.push(this._createListItem(platform, platform.label()));
                 }
diff --git a/Websites/perf.webkit.org/public/v3/models/platform.js b/Websites/perf.webkit.org/public/v3/models/platform.js
index 3a6d58cc48ba..117ffd363c61 100644
--- a/Websites/perf.webkit.org/public/v3/models/platform.js
+++ b/Websites/perf.webkit.org/public/v3/models/platform.js
@@ -6,6 +6,7 @@ class Platform extends LabeledObject {
         super(id, object);
         this._metrics = object.metrics;
         this._lastModifiedByMetric = object.lastModifiedByMetric;
+        this._isHidden = object.hidden;
         this._containingTests = null;
 
         this.ensureNamedStaticMap('name')[object.name] = this;
@@ -54,6 +55,11 @@ class Platform extends LabeledObject {
         return this._lastModifiedByMetric[metric.id()];
     }
 
+    isHidden()
+    {
+        return this._isHidden;
+    }
+
     group() { return this._group; }
 }
 
diff --git a/Websites/perf.webkit.org/public/v3/pages/charts-page.js b/Websites/perf.webkit.org/public/v3/pages/charts-page.js
index e4e1997d5375..a801ec349eb8 100644
--- a/Websites/perf.webkit.org/public/v3/pages/charts-page.js
+++ b/Websites/perf.webkit.org/public/v3/pages/charts-page.js
@@ -251,7 +251,7 @@ class ChartsPage extends PageWithHeading {
         }
 
         return metric.platforms().filter(function (platform) {
-            return !existingPlatforms[platform.id()];
+            return !existingPlatforms[platform.id()] && !platform.isHidden();
         });
     }
 
diff --git a/Websites/perf.webkit.org/server-tests/api-manifest-tests.js b/Websites/perf.webkit.org/server-tests/api-manifest-tests.js
index 8982f3b40c6c..cbb15eeda1ea 100644
--- a/Websites/perf.webkit.org/server-tests/api-manifest-tests.js
+++ b/Websites/perf.webkit.org/server-tests/api-manifest-tests.js
@@ -324,6 +324,41 @@ describe('/api/manifest', function () {
         });
     });
 
+    it("should generate manifest with platforms hidden field", async () => {
+        let db = TestServer.database();
+        await Promise.all([
+            db.insert('tests', {id: 1, name: 'SomeTest'}),
+            db.insert('tests', {id: 2, name: 'SomeOtherTest'}),
+            db.insert('tests', {id: 3, name: 'ChildTest', parent: 1}),
+            db.insert('tests', {id: 4, name: 'GrandChild', parent: 3}),
+            db.insert('aggregators', {id: 200, name: 'Total'}),
+            db.insert('test_metrics', {id: 5, test: 1, name: 'Time'}),
+            db.insert('test_metrics', {id: 6, test: 2, name: 'Time', aggregator: 200}),
+            db.insert('test_metrics', {id: 7, test: 2, name: 'Malloc', aggregator: 200}),
+            db.insert('test_metrics', {id: 8, test: 3, name: 'Time'}),
+            db.insert('test_metrics', {id: 9, test: 4, name: 'Time'}),
+            db.insert('platform_groups', {id: 1, name: 'ios'}),
+            db.insert('platform_groups', {id: 2, name: 'mac'}),
+            db.insert('platforms', {id: 23, name: 'iOS 9 iPhone 5s', group: 1, hidden: true}),
+            db.insert('platforms', {id: 46, name: 'Trunk Mavericks', group: 2}),
+            db.insert('test_configurations', {id: 101, metric: 5, platform: 46, type: 'current'}),
+            db.insert('test_configurations', {id: 102, metric: 6, platform: 46, type: 'current'}),
+            db.insert('test_configurations', {id: 103, metric: 7, platform: 46, type: 'current'}),
+            db.insert('test_configurations', {id: 104, metric: 8, platform: 46, type: 'current'}),
+            db.insert('test_configurations', {id: 105, metric: 9, platform: 46, type: 'current'}),
+            db.insert('test_configurations', {id: 106, metric: 5, platform: 23, type: 'current'}),
+            db.insert('test_configurations', {id: 107, metric: 5, platform: 23, type: 'baseline'}),
+        ]);
+        const content = await TestServer.remoteAPI().getJSON('/api/manifest');
+        Manifest._didFetchManifest(content);
+        const ios9iphone5s = Platform.findById(23);
+        const mavericks = Platform.findById(46);
+        assert(ios9iphone5s);
+        assert(mavericks);
+        assert(ios9iphone5s.isHidden());
+        assert(!mavericks.isHidden());
+    });
+
     it("should generate manifest with triggerables", () => {
         let db = TestServer.database();
         return Promise.all([