diff --git a/ui/app/peers/[peerName]/lagGraph.tsx b/ui/app/peers/[peerName]/lagGraph.tsx
index 7107b7d80..87b90fa8c 100644
--- a/ui/app/peers/[peerName]/lagGraph.tsx
+++ b/ui/app/peers/[peerName]/lagGraph.tsx
@@ -22,7 +22,7 @@ function parseLSN(lsn: string): number {
if (!lsn) return 0;
const [lsn1, lsn2] = lsn.split('/');
return Number(
- (BigInt(parseInt(lsn1)) << BigInt(32)) | BigInt(parseInt(lsn2))
+ (BigInt(parseInt(lsn1, 16)) << BigInt(32)) | BigInt(parseInt(lsn2, 16))
);
}
@@ -135,7 +135,7 @@ export default function LagGraph({ peerName }: LagGraphProps) {
/>
setShowLsn((val) => !val)}
/>
)}