diff --git a/packages/backend/src/posthogEvents.ts b/packages/backend/src/posthogEvents.ts
index d60a7533..e8eb9c1d 100644
--- a/packages/backend/src/posthogEvents.ts
+++ b/packages/backend/src/posthogEvents.ts
@@ -18,7 +18,10 @@ export type PosthogEventMap = {
         connectionId: number,
         repoCount: number,
     },
-    revisions_truncated: {},
+    backend_revisions_truncated: {
+        repoId: number,
+        revisionCount: number,
+    },
     //////////////////////////////////////////////////////////////////
 }