diff --git a/spec/unit/content-repo.spec.js b/spec/unit/content-repo.spec.js
index b55055684..377aedd52 100644
--- a/spec/unit/content-repo.spec.js
+++ b/spec/unit/content-repo.spec.js
@@ -1,4 +1,4 @@
-import {getHttpUriForMxc, getIdenticonUri} from "../../src/content-repo";
+import {getHttpUriForMxc} from "../../src/content-repo";
 
 describe("ContentRepo", function() {
     const baseUrl = "https://my.home.server";
@@ -56,31 +56,4 @@ describe("ContentRepo", function() {
             );
         });
     });
-
-    describe("getIdenticonUri", function() {
-        it("should do nothing for null input", function() {
-            expect(getIdenticonUri(null)).toEqual(null);
-        });
-
-        it("should set w/h by default to 96", function() {
-            expect(getIdenticonUri(baseUrl, "foobar")).toEqual(
-                baseUrl + "/_matrix/media/unstable/identicon/foobar" +
-                "?width=96&height=96",
-            );
-        });
-
-        it("should be able to set custom w/h", function() {
-            expect(getIdenticonUri(baseUrl, "foobar", 32, 64)).toEqual(
-                baseUrl + "/_matrix/media/unstable/identicon/foobar" +
-                "?width=32&height=64",
-            );
-        });
-
-        it("should URL encode the identicon string", function() {
-            expect(getIdenticonUri(baseUrl, "foo#bar", 32, 64)).toEqual(
-                baseUrl + "/_matrix/media/unstable/identicon/foo%23bar" +
-                "?width=32&height=64",
-            );
-        });
-    });
 });
diff --git a/src/content-repo.js b/src/content-repo.js
index 4bc4ca688..0d1ae1ea0 100644
--- a/src/content-repo.js
+++ b/src/content-repo.js
@@ -75,35 +75,3 @@ export function getHttpUriForMxc(baseUrl, mxc, width, height,
         (utils.keys(params).length === 0 ? "" :
         ("?" + utils.encodeParams(params))) + fragment;
 }
-
-/**
- * Get an identicon URL from an arbitrary string.
- * @param {string} baseUrl The base homeserver url which has a content repo.
- * @param {string} identiconString The string to create an identicon for.
- * @param {Number} width The desired width of the image in pixels. Default: 96.
- * @param {Number} height The desired height of the image in pixels. Default: 96.
- * @return {string} The complete URL to the identicon.
- * @deprecated This is no longer in the specification.
- */
-export function getIdenticonUri(baseUrl, identiconString, width, height) {
-    if (!identiconString) {
-        return null;
-    }
-    if (!width) {
-        width = 96;
-    }
-    if (!height) {
-        height = 96;
-    }
-    const params = {
-        width: width,
-        height: height,
-    };
-
-    const path = utils.encodeUri("/_matrix/media/unstable/identicon/$ident", {
-        $ident: identiconString,
-    });
-    return baseUrl + path +
-        (utils.keys(params).length === 0 ? "" :
-            ("?" + utils.encodeParams(params)));
-}
diff --git a/src/models/room-member.js b/src/models/room-member.js
index 4dc973c79..b6173f4af 100644
--- a/src/models/room-member.js
+++ b/src/models/room-member.js
@@ -20,7 +20,7 @@ limitations under the License.
  */
 
 import {EventEmitter} from "events";
-import {getHttpUriForMxc, getIdenticonUri} from "../content-repo";
+import {getHttpUriForMxc} from "../content-repo";
 import * as utils from "../utils";
 
 /**
@@ -274,10 +274,6 @@ RoomMember.prototype.getAvatarUrl =
     );
     if (httpUrl) {
         return httpUrl;
-    } else if (allowDefault) {
-        return getIdenticonUri(
-            baseUrl, this.userId, width, height,
-        );
     }
     return null;
 };
diff --git a/src/models/room.js b/src/models/room.js
index 4a656712f..82405eb1c 100644
--- a/src/models/room.js
+++ b/src/models/room.js
@@ -23,7 +23,7 @@ limitations under the License.
 import {EventEmitter} from "events";
 import {EventTimelineSet} from "./event-timeline-set";
 import {EventTimeline} from "./event-timeline";
-import {getHttpUriForMxc, getIdenticonUri} from "../content-repo";
+import {getHttpUriForMxc} from "../content-repo";
 import * as utils from "../utils";
 import {EventStatus, MatrixEvent} from "./event";
 import {RoomMember} from "./room-member";
@@ -818,10 +818,6 @@ Room.prototype.getAvatarUrl = function(baseUrl, width, height, resizeMethod,
         return getHttpUriForMxc(
             baseUrl, mainUrl, width, height, resizeMethod,
         );
-    } else if (allowDefault) {
-        return getIdenticonUri(
-            baseUrl, this.roomId, width, height,
-        );
     }
 
     return null;