diff --git a/man/systemd.exec.xml b/man/systemd.exec.xml
index 008565c14b..c1f47e84e6 100644
--- a/man/systemd.exec.xml
+++ b/man/systemd.exec.xml
@@ -1262,14 +1262,17 @@
Personality=
- Controls which kernel architecture
- uname2
- shall report, when invoked by unit processes. Takes one of
- x86 and x86-64. This
- is useful when running 32-bit services on a 64-bit host
- system. If not specified, the personality is left unmodified
- and thus reflects the personality of the host system's
- kernel.
+ Controls which kernel architecture uname2 shall report,
+ when invoked by unit processes. Takes one of the architecture identifiers x86,
+ x86-64, ppc, ppc-le, ppc64,
+ ppc64-le, s390 or s390x. Which personality
+ architectures are supported depends on the system architecture. Usually the 64bit versions of the various
+ system architectures support their immediate 32bit personality architecture counterpart, but no others. For
+ example, x86-64 systems support the x86-64 and
+ x86 personalities but no others. The personality feature is useful when running 32-bit
+ services on a 64-bit host system. If not specified, the personality is left unmodified and thus reflects the
+ personality of the host system's kernel.