diff --git a/browser/components/aboutwelcome/jar.mn b/browser/components/aboutwelcome/jar.mn
new file mode 100644
index 000000000000..ed55846c91fe
--- /dev/null
+++ b/browser/components/aboutwelcome/jar.mn
@@ -0,0 +1,6 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+browser.jar:
+  res/activity-stream/aboutwelcome/lib/ (./modules/*)
diff --git a/browser/components/newtab/aboutwelcome/lib/AboutWelcomeDefaults.jsm b/browser/components/aboutwelcome/modules/AboutWelcomeDefaults.jsm
similarity index 100%
rename from browser/components/newtab/aboutwelcome/lib/AboutWelcomeDefaults.jsm
rename to browser/components/aboutwelcome/modules/AboutWelcomeDefaults.jsm
diff --git a/browser/components/newtab/aboutwelcome/lib/AboutWelcomeTelemetry.jsm b/browser/components/aboutwelcome/modules/AboutWelcomeTelemetry.jsm
similarity index 100%
rename from browser/components/newtab/aboutwelcome/lib/AboutWelcomeTelemetry.jsm
rename to browser/components/aboutwelcome/modules/AboutWelcomeTelemetry.jsm
diff --git a/browser/components/aboutwelcome/moz.build b/browser/components/aboutwelcome/moz.build
index 2af97e607a6e..77ba7a5fed79 100644
--- a/browser/components/aboutwelcome/moz.build
+++ b/browser/components/aboutwelcome/moz.build
@@ -15,3 +15,5 @@ FINAL_TARGET_FILES.actors += [
     "actors/AboutWelcomeChild.sys.mjs",
     "actors/AboutWelcomeParent.sys.mjs",
 ]
+
+JAR_MANIFESTS += ["jar.mn"]
diff --git a/browser/components/newtab/jar.mn b/browser/components/newtab/jar.mn
index 5f1dec37f51e..154b84b0fae9 100644
--- a/browser/components/newtab/jar.mn
+++ b/browser/components/newtab/jar.mn
@@ -10,7 +10,6 @@ browser.jar:
   content/activity-stream/aboutwelcome/aboutwelcome.css (./aboutwelcome/content/aboutwelcome.css)
   res/activity-stream/aboutwelcome/aboutwelcome.bundle.js (./aboutwelcome/content/aboutwelcome.bundle.js)
   res/activity-stream/aboutwelcome/aboutwelcome.html (./aboutwelcome/content/aboutwelcome.html)
-  res/activity-stream/aboutwelcome/lib/ (./aboutwelcome/lib/*)
   res/activity-stream/schemas/BackgroundTaskMessagingExperiment.schema.json (./content-src/asrouter/schemas/BackgroundTaskMessagingExperiment.schema.json)
   res/activity-stream/schemas/MessagingExperiment.schema.json (./content-src/asrouter/schemas/MessagingExperiment.schema.json)
   res/activity-stream/vendor/Redux.sys.mjs (./vendor/Redux.sys.mjs)