diff --git a/Nos/Models/RelaySubscription.swift b/Nos/Models/RelaySubscription.swift
index 9576a10af..11e00acc2 100644
--- a/Nos/Models/RelaySubscription.swift
+++ b/Nos/Models/RelaySubscription.swift
@@ -42,7 +42,8 @@ struct RelaySubscription: Identifiable {
     ) {
         self.filter = filter
         self.relayAddress = relayAddress
-        self.id = filter.id + "-" + relayAddress.absoluteString
+        // Compute a unique ID but predictable ID. The sha256 cuts the length down to an acceptable size.
+        self.id = (filter.id + "-" + relayAddress.absoluteString).data(using: .utf8)?.sha256 ?? "error"
         self.subscriptionStartDate = subscriptionStartDate
         self.oldestEventCreationDate = oldestEventCreationDate
         self.referenceCount = referenceCount