diff --git a/js_modules/dagster-ui/packages/ui-core/src/assets/AssetTabs.tsx b/js_modules/dagster-ui/packages/ui-core/src/assets/AssetTabs.tsx
index f7ee57be759a8..e02d33878c3a7 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/assets/AssetTabs.tsx
+++ b/js_modules/dagster-ui/packages/ui-core/src/assets/AssetTabs.tsx
@@ -65,7 +65,7 @@ export const buildAssetTabMap = (input: AssetTabConfigInput) => {
       id: 'partitions',
       title: 'Partitions',
       to: buildAssetViewParams({...params, view: 'partitions'}),
-      hidden: !definition?.partitionDefinition || !definition?.isMaterializable,
+      hidden: !definition?.partitionDefinition || !definition?.isMaterializable === false,
     } as AssetTabConfig,
     checks: {
       id: 'checks',
diff --git a/js_modules/dagster-ui/packages/ui-core/src/assets/AssetView.tsx b/js_modules/dagster-ui/packages/ui-core/src/assets/AssetView.tsx
index 6ff92b65c06ec..db91ebd99d840 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/assets/AssetView.tsx
+++ b/js_modules/dagster-ui/packages/ui-core/src/assets/AssetView.tsx
@@ -163,7 +163,7 @@ export const AssetView = ({assetKey, headerBreadcrumbs, writeAssetVisit, current
   };
 
   const renderPartitionsTab = () => {
-    if (!definition?.isMaterializable) {
+    if (definition?.isMaterializable === false) {
       return <Redirect to={assetDetailsPathForKey(assetKey, {view: 'events'})} />;
     }