diff --git a/test/test-execute/exec-dynamicuser-fixeduser-games.service b/test/test-execute/exec-dynamicuser-fixeduser-games.service
index 29b712c9aa..6043589745 100644
--- a/test/test-execute/exec-dynamicuser-fixeduser-games.service
+++ b/test/test-execute/exec-dynamicuser-fixeduser-games.service
@@ -2,12 +2,13 @@
 [Unit]
 Description=Test DynamicUser with static User= whose uid and gid are different
 # On Ubuntu or Debian, user games has uid==5 and gid==60.
+# On Alpine/postmarketOS, the user 'games' in the 'games' and 'users' groups.
 
 [Service]
 Type=oneshot
-ExecStart=bash -x -c 'test "$$(id -nG)" = "games" && test "$$(id -ng)" = "games" && test "$$(id -nu)" = "games"'
+ExecStart=bash -x -c '[[ "$$(id -nG)" =~ "games" ]] && test "$$(id -ng)" = "games" && test "$$(id -nu)" = "games"'
 # Multiple ExecStart= lines causes the issue #9702.
-ExecStart=bash -x -c 'test "$$(id -nG)" = "games" && test "$$(id -ng)" = "games" && test "$$(id -nu)" = "games"'
+ExecStart=bash -x -c '[[ "$$(id -nG)" =~ "games" ]] && test "$$(id -ng)" = "games" && test "$$(id -nu)" = "games"'
 DynamicUser=yes
 User=games
 ReadWritePaths=-/coverage