diff --git a/frontend/src/component/insights/hooks/useFilteredFlagsSummary.test.ts b/frontend/src/component/insights/hooks/useFilteredFlagsSummary.test.ts
index ca10cfc0e7..e02615ddf7 100644
--- a/frontend/src/component/insights/hooks/useFilteredFlagsSummary.test.ts
+++ b/frontend/src/component/insights/hooks/useFilteredFlagsSummary.test.ts
@@ -161,7 +161,7 @@ describe('useFilteredFlagTrends', () => {
             stale: 0,
             potentiallyStale: 0,
             averageUsers: 0,
-            averageHealth: undefined,
+            averageHealth: '100',
             medianTimeToProduction: undefined,
         });
     });
@@ -214,7 +214,7 @@ describe('useFilteredFlagTrends', () => {
             stale: 0,
             potentiallyStale: 0,
             averageUsers: 0,
-            averageHealth: undefined,
+            averageHealth: '100',
             medianTimeToProduction: 5,
         });
     });
diff --git a/frontend/src/component/insights/hooks/useFilteredFlagsSummary.ts b/frontend/src/component/insights/hooks/useFilteredFlagsSummary.ts
index 7b428629d0..3ff263aea7 100644
--- a/frontend/src/component/insights/hooks/useFilteredFlagsSummary.ts
+++ b/frontend/src/component/insights/hooks/useFilteredFlagsSummary.ts
@@ -70,7 +70,7 @@ export const useFilteredFlagsSummary = (
             averageUsers,
             averageHealth: sum.total
                 ? ((sum.active / (sum.total || 1)) * 100).toFixed(0)
-                : undefined,
+                : '100',
             medianTimeToProduction,
         };
     }, [filteredProjectFlagTrends]);