diff --git a/pungi/phases/pkgset/common.py b/pungi/phases/pkgset/common.py
index 2a4e9393..8fd96962 100644
--- a/pungi/phases/pkgset/common.py
+++ b/pungi/phases/pkgset/common.py
@@ -138,3 +138,12 @@ def materialize_pkgset(compose, pkgset_global, path_prefix):
     create_arch_repos(compose, path_prefix)
 
     return package_sets
+
+
+def get_all_arches(compose):
+    all_arches = set(["src"])
+    for arch in compose.get_arches():
+        is_multilib = is_arch_multilib(compose.conf, arch)
+        arches = get_valid_arches(arch, is_multilib)
+        all_arches.update(arches)
+    return all_arches
diff --git a/pungi/phases/pkgset/sources/source_koji.py b/pungi/phases/pkgset/sources/source_koji.py
index 2c5f9187..f70c4625 100644
--- a/pungi/phases/pkgset/sources/source_koji.py
+++ b/pungi/phases/pkgset/sources/source_koji.py
@@ -26,11 +26,11 @@ from kobo.shortcuts import force_list, relative_path
 import pungi.wrappers.kojiwrapper
 from pungi.wrappers.comps import CompsWrapper
 import pungi.phases.pkgset.pkgsets
-from pungi.arch import get_valid_arches, getBaseArch
-from pungi.util import is_arch_multilib, retry, find_old_compose
+from pungi.arch import getBaseArch
+from pungi.util import retry, find_old_compose
 from pungi import Modulemd
 
-from pungi.phases.pkgset.common import materialize_pkgset
+from pungi.phases.pkgset.common import materialize_pkgset, get_all_arches
 from pungi.phases.gather import get_packages_to_gather
 
 import pungi.phases.pkgset.source
@@ -492,11 +492,7 @@ def _find_old_file_cache_path(compose):
 
 
 def populate_global_pkgset(compose, koji_wrapper, path_prefix, event):
-    all_arches = set(["src"])
-    for arch in compose.get_arches():
-        is_multilib = is_arch_multilib(compose.conf, arch)
-        arches = get_valid_arches(arch, is_multilib)
-        all_arches.update(arches)
+    all_arches = get_all_arches(compose)
 
     # List of compose tags from which we create this compose
     compose_tags = []
diff --git a/pungi/phases/pkgset/sources/source_repos.py b/pungi/phases/pkgset/sources/source_repos.py
index 5dfbffe8..5cb015f1 100644
--- a/pungi/phases/pkgset/sources/source_repos.py
+++ b/pungi/phases/pkgset/sources/source_repos.py
@@ -20,11 +20,10 @@ from six.moves import cPickle as pickle
 from kobo.shortcuts import run
 
 import pungi.phases.pkgset.pkgsets
-from pungi.arch import get_valid_arches
-from pungi.util import makedirs, is_arch_multilib
+from pungi.util import makedirs
 from pungi.wrappers.pungi import PungiWrapper
 
-from pungi.phases.pkgset.common import materialize_pkgset
+from pungi.phases.pkgset.common import materialize_pkgset, get_all_arches
 from pungi.phases.gather import get_prepopulate_packages, get_packages_to_gather
 from pungi.linker import LinkerPool
 
@@ -119,11 +118,7 @@ def get_pkgset_from_repos(compose):
 
 
 def populate_global_pkgset(compose, file_list, path_prefix):
-    ALL_ARCHES = set(["src"])
-    for arch in compose.get_arches():
-        is_multilib = is_arch_multilib(compose.conf, arch)
-        arches = get_valid_arches(arch, is_multilib)
-        ALL_ARCHES.update(arches)
+    ALL_ARCHES = get_all_arches(compose)
 
     global_pkgset_path = os.path.join(compose.paths.work.topdir(arch="global"), "packages.pickle")