diff --git a/js/ui/profileModal/ProfileDirectMessageController.js b/js/ui/profileModal/ProfileDirectMessageController.js
index cf0290da..07e0018b 100644
--- a/js/ui/profileModal/ProfileDirectMessageController.js
+++ b/js/ui/profileModal/ProfileDirectMessageController.js
@@ -680,6 +680,14 @@ export class ProfileDirectMessageController {
     return this.helper.resolveActiveDmRecipient(...args);
   }
 
+  // ProfileModerationController calls dmController.resolveProfileSummaryForPubkey
+  // (and createCompactProfileSummary, already delegated below). The method lives on
+  // the helper, so without this delegation the moderation-settings UI threw
+  // "is not a function" on open.
+  resolveProfileSummaryForPubkey(...args) {
+    return this.helper.resolveProfileSummaryForPubkey(...args);
+  }
+
   createCompactProfileSummary(...args) {
     return this.renderer.createCompactProfileSummary(...args);
   }
diff --git a/tests/dm-controller-delegations.test.mjs b/tests/dm-controller-delegations.test.mjs
index 36024463..b402bc78 100644
--- a/tests/dm-controller-delegations.test.mjs
+++ b/tests/dm-controller-delegations.test.mjs
@@ -49,3 +49,22 @@ test("controller delegates every DM app-shell callback to this.actions", () => {
     );
   }
 });
+
+test("controller delegates resolveProfileSummaryForPubkey to this.helper", () => {
+  // ProfileModerationController calls dmController.resolveProfileSummaryForPubkey;
+  // the method lives on the helper, so the controller must delegate it.
+  const proto = ProfileDirectMessageController.prototype;
+  assert.equal(typeof proto.resolveProfileSummaryForPubkey, "function");
+  const received = [];
+  const fake = {
+    helper: {
+      resolveProfileSummaryForPubkey: (...args) => {
+        received.push(args);
+        return "summary";
+      },
+    },
+  };
+  const result = proto.resolveProfileSummaryForPubkey.call(fake, "pubkey-x");
+  assert.equal(result, "summary");
+  assert.deepEqual(received[0], ["pubkey-x"]);
+});