diff --git a/app/controllers/users_controller.rb b/app/controllers/users_controller.rb
index 3e51a5936..696006c23 100644
--- a/app/controllers/users_controller.rb
+++ b/app/controllers/users_controller.rb
@@ -50,6 +50,7 @@ class UsersController < ApplicationController
       @user.save
       if @user.errors.empty?
         session[:user_id] = @user.id
+        flash[:alias_mixpanel] = true
       else
         flash[:notice] = "Sign up failed: #{@user.errors.full_messages.join("; ")}"
       end
diff --git a/app/javascript/packs/application.js b/app/javascript/packs/application.js
index 092cb13b2..dd267c07f 100644
--- a/app/javascript/packs/application.js
+++ b/app/javascript/packs/application.js
@@ -43,4 +43,4 @@ export { default as Shortcuts } from '../src/javascripts/shortcuts.js';
 export { default as Upload } from '../src/javascripts/uploads.js';
 export { default as Utility } from '../src/javascripts/utility.js';
 export { default as Ugoira } from '../src/javascripts/ugoira.js';
-export { mixpanelInit, mixpanelEvent } from '../src/javascripts/mixpanel.js';
+export { mixpanelInit, mixpanelEvent, mixpanelAlias } from '../src/javascripts/mixpanel.js';
diff --git a/app/javascript/src/javascripts/mixpanel.js b/app/javascript/src/javascripts/mixpanel.js
index 98122ac03..0e726094e 100644
--- a/app/javascript/src/javascripts/mixpanel.js
+++ b/app/javascript/src/javascripts/mixpanel.js
@@ -1,18 +1,14 @@
-const mixpanelInit = (user_id, session_id, opt_out, user_data) => {
+const mixpanelInit = (user_id, opt_out, user_data) => {
   if (typeof window.mixpanel !== "object") {
     return;
   }
 
-  if (user_id) {
-    window.mixpanel.identify(user_id);
+  window.mixpanel.identify(user_id);
 
-    if (opt_out) {
-      window.mixpanel.opt_out_tracking();
-    } else {
-      window.mixpanel.people.set(user_data);
-    }
-  } else if (session_id) {
-    window.mixpanel.identify("anon:" + session_id);
+  if (opt_out) {
+    window.mixpanel.opt_out_tracking();
+  } else {
+    window.mixpanel.people.set(user_data);
   }
 }
 
@@ -24,4 +20,12 @@ const mixpanelEvent = (title, props) => {
   window.mixpanel.track(title, props);
 }
 
-export { mixpanelInit, mixpanelEvent };
+const mixpanelAlias = (user_id) => {
+  if (typeof window.mixpanel !== "object") {
+    return;
+  }
+
+  window.mixpanel.alias(user_id);
+}
+
+export { mixpanelInit, mixpanelEvent, mixpanelAlias };
diff --git a/app/views/layouts/default.html.erb b/app/views/layouts/default.html.erb
index 21f0d625e..23eb01844 100644
--- a/app/views/layouts/default.html.erb
+++ b/app/views/layouts/default.html.erb
@@ -84,18 +84,15 @@
       $(window).trigger("danbooru:error", msg);
     }
   </script>
-  <script>
-    window.Danbooru.mixpanelInit(
-      <%= CurrentUser.id || "null" %>,
-      <%= raw session.id.to_json %>,
-      <%= CurrentUser.opt_out_mixpanel? %>,
-      <% if CurrentUser.is_anonymous? %>
-        {}
-      <% else %>
+  <% unless CurrentUser.is_anonymous? %>
+    <script>
+      window.Danbooru.mixpanelInit(
+        "<%= CurrentUser.id %>",
+        <%= CurrentUser.opt_out_mixpanel? %>,
         <%= raw({"$created" =>CurrentUser.created_at.strftime('%F %T'), "$name" => CurrentUser.name, "level" => CurrentUser.level, "upload_count" => CurrentUser.post_upload_count, "post_update_count" => CurrentUser.post_update_count, "note_update_count" => CurrentUser.note_update_count, "favorite_count" => CurrentUser.favorite_count}.to_json) %>
-      <% end %>
-    );
-  </script>
+      );
+    </script>
+  <% end %>
 
 </head>
 <%= tag.body **body_attributes(CurrentUser.user) do %>
diff --git a/app/views/user_feedbacks/show.html.erb b/app/views/user_feedbacks/show.html.erb
index 34efbfb57..54d0c5be4 100644
--- a/app/views/user_feedbacks/show.html.erb
+++ b/app/views/user_feedbacks/show.html.erb
@@ -20,3 +20,13 @@
 <% content_for(:page_title) do %>
   Feedback - <%= @user_feedback.user_name %> - <%= Danbooru.config.app_name %>
 <% end %>
+
+<% if flash[:alias_mixpanel] %>
+  <% content_for(:html_header) do %>
+    <script>
+      $(function() {
+        window.Danbooru.mixpanelAlias("<%= CurrentUser.id %>");
+      });
+    </script>
+  <% end %>
+<% end %>
\ No newline at end of file