diff --git a/waku/waku_rln_relay/group_manager/on_chain/group_manager.nim b/waku/waku_rln_relay/group_manager/on_chain/group_manager.nim
index d1b94093e..107e02dcd 100644
--- a/waku/waku_rln_relay/group_manager/on_chain/group_manager.nim
+++ b/waku/waku_rln_relay/group_manager/on_chain/group_manager.nim
@@ -581,7 +581,9 @@ method init*(g: OnchainGroupManager): Future[GroupManagerResult[void]] {.async.}
   ethRpc.ondisconnect = proc() =
     asyncSpawn onDisconnect()
 
-  waku_rln_number_registered_memberships.set(int64(g.rlnInstance.leavesSet()))
+  let memberCount = cast[float64](await wakuRlnContract.commitmentIndex().call())
+  waku_rln_number_registered_memberships.set(memberCount)
+
   g.initialized = true
   return ok()
 
diff --git a/waku/waku_rln_relay/protocol_metrics.nim b/waku/waku_rln_relay/protocol_metrics.nim
index 121727809..52a107772 100644
--- a/waku/waku_rln_relay/protocol_metrics.nim
+++ b/waku/waku_rln_relay/protocol_metrics.nim
@@ -85,6 +85,7 @@ proc getRlnMetricsLogger*(): RLNMetricsLogger =
   var cumulativeProofsVerified = 0.float64
   var cumulativeProofsGenerated = 0.float64
   var cumulativeProofsRemaining = 100.float64
+  var cumulativeRegisteredMember = 0.float64
 
   when defined(metrics):
     logMetrics = proc() =
@@ -107,6 +108,9 @@ proc getRlnMetricsLogger*(): RLNMetricsLogger =
         let freshProofsRemainingCount = parseAndAccumulate(
           waku_rln_remaining_proofs_per_epoch, cumulativeProofsRemaining
         )
+        let freshRegisteredMemberCount = parseAndAccumulate(
+          waku_rln_number_registered_memberships, cumulativeRegisteredMember
+        )
 
         info "Total messages", count = freshMsgCount
         info "Total spam messages", count = freshSpamCount