diff --git a/pmb/config/init.py b/pmb/config/init.py
index 5991f468..d12ce5eb 100644
--- a/pmb/config/init.py
+++ b/pmb/config/init.py
@@ -105,8 +105,9 @@ def ask_for_channel(args):
                       " from the list above.")
 
 
-def ask_for_ui(args):
-    ui_list = pmb.helpers.ui.list(args)
+def ask_for_ui(args, device):
+    info = pmb.parse.deviceinfo(args, device)
+    ui_list = pmb.helpers.ui.list(args, info["arch"])
     logging.info("Available user interfaces (" +
                  str(len(ui_list) - 1) + "): ")
     ui_completion_list = []
@@ -419,7 +420,7 @@ def frontend(args):
                                                      args.user, False,
                                                      "[a-z_][a-z0-9_-]*")
     # UI and various build options
-    ui = ask_for_ui(args)
+    ui = ask_for_ui(args, device)
     cfg["pmbootstrap"]["ui"] = ui
     cfg["pmbootstrap"]["ui_extras"] = str(ask_for_ui_extras(args, ui))
     ask_for_build_options(args, cfg)
diff --git a/pmb/helpers/ui.py b/pmb/helpers/ui.py
index b903cbcb..e76978f4 100644
--- a/pmb/helpers/ui.py
+++ b/pmb/helpers/ui.py
@@ -5,15 +5,17 @@ import glob
 import pmb.parse
 
 
-def list(args):
+def list(args, arch):
     """
     Get all UIs, for which aports are available with their description.
 
+    :param arch: device architecture, for which the UIs must be available
     :returns: [("none", "No graphical..."), ("weston", "Wayland reference...")]
     """
     ret = [("none", "No graphical environment")]
     for path in sorted(glob.glob(args.aports + "/main/postmarketos-ui-*")):
         apkbuild = pmb.parse.apkbuild(args, path + "/APKBUILD")
         ui = os.path.basename(path).split("-", 2)[2]
-        ret.append((ui, apkbuild["pkgdesc"]))
+        if pmb.helpers.package.check_arch(args, apkbuild["pkgname"], arch):
+            ret.append((ui, apkbuild["pkgdesc"]))
     return ret
diff --git a/test/test_helpers_ui.py b/test/test_helpers_ui.py
new file mode 100644
index 00000000..2c4d6b75
--- /dev/null
+++ b/test/test_helpers_ui.py
@@ -0,0 +1,32 @@
+# Copyright 2020 Oliver Smith
+# SPDX-License-Identifier: GPL-3.0-or-later
+import pytest
+import sys
+
+import pmb_test
+import pmb_test.const
+import pmb.helpers.logging
+import pmb.helpers.ui
+
+
+@pytest.fixture
+def args(tmpdir, request):
+    import pmb.parse
+    cfg = f"{pmb_test.const.testdata}/channels.cfg"
+    sys.argv = ["pmbootstrap.py", "--config-channels", cfg, "init"]
+    args = pmb.parse.arguments()
+    args.log = args.work + "/log_testsuite.txt"
+    pmb.helpers.logging.init(args)
+    request.addfinalizer(args.logfd.close)
+    return args
+
+
+def test_helpers_ui(args):
+    """ Test the UIs returned by pmb.helpers.ui.list() with a testdata pmaports
+        dir. That test dir has a plasma-mobile UI, which is disabled for armhf,
+        so it must not be returned when querying the UI list for armhf. """
+    args.aports = f"{pmb_test.const.testdata}/helpers_ui/pmaports"
+    func = pmb.helpers.ui.list
+    assert func(args, "armhf") == [("none", "No graphical environment")]
+    assert func(args, "x86_64") == [("none", "No graphical environment"),
+                                    ("plasma-mobile", "cool pkgdesc")]
diff --git a/test/test_questions.py b/test/test_questions.py
index cc373266..d446c4f7 100644
--- a/test/test_questions.py
+++ b/test/test_questions.py
@@ -216,12 +216,13 @@ def test_questions_keymaps(args, monkeypatch):
 
 def test_questions_ui(args, monkeypatch):
     args.aports = pmb_test.const.testdata + "/init_questions_device/aports"
+    device = "lg-mako"
 
     fake_answers(monkeypatch, ["none"])
-    assert pmb.config.init.ask_for_ui(args) == "none"
+    assert pmb.config.init.ask_for_ui(args, device) == "none"
 
     fake_answers(monkeypatch, ["invalid_UI", "weston"])
-    assert pmb.config.init.ask_for_ui(args) == "weston"
+    assert pmb.config.init.ask_for_ui(args, device) == "weston"
 
 
 def test_questions_ui_extras(args, monkeypatch):
diff --git a/test/testdata/helpers_ui/pmaports/main/postmarketos-ui-plasma-mobile/APKBUILD b/test/testdata/helpers_ui/pmaports/main/postmarketos-ui-plasma-mobile/APKBUILD
new file mode 100644
index 00000000..434a0eaf
--- /dev/null
+++ b/test/testdata/helpers_ui/pmaports/main/postmarketos-ui-plasma-mobile/APKBUILD
@@ -0,0 +1,11 @@
+pkgname=postmarketos-ui-plasma-mobile
+pkgver=42
+pkgrel=0
+pkgdesc="cool pkgdesc"
+url="https://postmarketos.org"
+arch="noarch !armhf"
+license="GPL-3.0-or-later"
+
+package() {
+        mkdir "$pkgdir"
+}
diff --git a/test/testdata/helpers_ui/pmaports/pmaports.cfg b/test/testdata/helpers_ui/pmaports/pmaports.cfg
new file mode 120000
index 00000000..df27c9da
--- /dev/null
+++ b/test/testdata/helpers_ui/pmaports/pmaports.cfg
@@ -0,0 +1 @@
+../../pmaports.cfg
\ No newline at end of file