diff --git a/src/channels/dock.ts b/src/channels/dock.ts
index f8e864132..a51eee56e 100644
--- a/src/channels/dock.ts
+++ b/src/channels/dock.ts
@@ -219,7 +219,17 @@ const DOCKS: Record<ChatChannelId, ChannelDock> = {
           String(entry),
         );
       },
-      formatAllowFrom: ({ allowFrom }) => formatLower(allowFrom),
+      formatAllowFrom: ({ allowFrom }) =>
+        allowFrom
+          .map((entry) => String(entry).trim())
+          .filter(Boolean)
+          .map((entry) =>
+            entry
+              .replace(/^discord:/i, "")
+              .replace(/^user:/i, "")
+              .replace(/^pk:/i, "")
+              .toLowerCase(),
+          ),
     },
     groups: {
       resolveRequireMention: resolveDiscordGroupRequireMention,