diff --git a/src/posthog-core.ts b/src/posthog-core.ts
index 9be84c556..cbd4e6d7b 100644
--- a/src/posthog-core.ts
+++ b/src/posthog-core.ts
@@ -286,7 +286,7 @@ export class PostHog {
 
     // Legacy property to support existing usage - this isn't technically correct but it's what it has always been - a proxy for flags being loaded
     public get decideEndpointWasHit(): boolean {
-        return this.featureFlags.hasLoadedFlags
+        return this.featureFlags?.hasLoadedFlags ?? false
     }
 
     /** DEPRECATED: We keep this to support existing usage but now one should just call .setPersonProperties */