diff --git a/meta-selftest/files/static-group b/meta-selftest/files/static-group
index 6a9ece20a8..a08795c4ea 100644
--- a/meta-selftest/files/static-group
+++ b/meta-selftest/files/static-group
@@ -31,4 +31,5 @@ audio:x:532:
 empower:x:533:
 cmake-example:x:534:
 meson-example:x:535:
+postgres:x:536
 nogroup:x:65534:
diff --git a/meta-selftest/files/static-passwd b/meta-selftest/files/static-passwd
index 98017c8153..ba1dcd54d8 100644
--- a/meta-selftest/files/static-passwd
+++ b/meta-selftest/files/static-passwd
@@ -21,3 +21,4 @@ ptest:x:529:529::/:/bin/nologin
 xuser:x:530:530::/:/bin/nologin
 cmake-example:x:534:534::/var/lib/cmake-example:/bin/false
 meson-example:x:535:535::/var/lib/meson-example:/bin/false
+postgres:x:536:536::/:/bin/nologin