diff --git a/src/python/jw/pkg/cmds/projects/CmdRequiredOsPkg.py b/src/python/jw/pkg/cmds/projects/CmdRequiredOsPkg.py
index c19ebb47..9aec61dc 100644
--- a/src/python/jw/pkg/cmds/projects/CmdRequiredOsPkg.py
+++ b/src/python/jw/pkg/cmds/projects/CmdRequiredOsPkg.py
@@ -1,5 +1,7 @@
 from __future__ import annotations
 
+import re
+
 from typing import TYPE_CHECKING, override
 
 from ...App import Scope
@@ -36,6 +38,14 @@ class CmdRequiredOsPkg(Cmd):  # export
             default = False,
             help = 'Put double quotes around each listed dependency',
         )
+        parser.add_argument(
+            '--pkg-relations',
+            default = 'requires',
+            help = (
+                'Relations between packages to take into consideration, '
+                'comma or space separated'
+            )
+        )
 
     @override
     async def _run(self, args: Namespace) -> None:
@@ -48,9 +58,10 @@ class CmdRequiredOsPkg(Cmd):  # export
         if 'release' in flavours:
             flavours |= set(['run', 'devel', 'build'])
         log(DEBUG, 'flavours = ' + args.flavours)
+        relations = tuple(re.split(r'[,\s]+', args.pkg_relations))
         deps = self.app.get_project_refs(
             modules,
-            ['pkg.requires.jw'],
+            [f'pkg.{rel}.jw' for rel in relations],
             list(flavours),
             scope = Scope.Subtree,
             add_self = True,
diff --git a/test/integration/jw-pkg/help/test-expected.txt b/test/integration/jw-pkg/help/test-expected.txt
index c7b895c9..2ab2fac0 100644
--- a/test/integration/jw-pkg/help/test-expected.txt
+++ b/test/integration/jw-pkg/help/test-expected.txt
@@ -763,20 +763,24 @@ options:
                         (default: None)
 ============= Running: jw-pkg.py -t ../../../.. --log-level info projects required-os-pkg --help
 usage: jw-pkg.py projects required-os-pkg [-h] [--skip-excluded] [--quote]
+                                          [--pkg-relations PKG_RELATIONS]
                                           flavours [modules ...]
 
 List distribution packages required for a package
 
 positional arguments:
-  flavours         Dependency flavours
-  modules          Modules (default: None)
+  flavours              Dependency flavours
+  modules               Modules (default: None)
 
 options:
-  -h, --help       show this help message and exit
-  --skip-excluded  Output empty prerequisite list for excluded modules
-                   (default: False)
-  --quote          Put double quotes around each listed dependency (default:
-                   False)
+  -h, --help            show this help message and exit
+  --skip-excluded       Output empty prerequisite list for excluded modules
+                        (default: False)
+  --quote               Put double quotes around each listed dependency
+                        (default: False)
+  --pkg-relations PKG_RELATIONS
+                        Relations between packages to take into consideration,
+                        comma or space separated (default: requires)
 ============= Running: jw-pkg.py -t ../../../.. --log-level info projects summary --help
 usage: jw-pkg.py projects summary [-h] [module ...]