diff --git a/srcpkgs/elogind/patches/fix-musl.patch b/srcpkgs/elogind/patches/fix-musl.patch
new file mode 100644
index 00000000000..420df313113
--- /dev/null
+++ b/srcpkgs/elogind/patches/fix-musl.patch
@@ -0,0 +1,14 @@
+Avoid error when building dependencies for *-musl where
+_POSIC_C_SOURCE may be undefined.
+
+--- src/systemd/sd-event.h	2018-03-09 07:57:50.000000000 +0100
++++ src/systemd/sd-event.h	2018-03-20 12:27:32.641946537 +0100
+@@ -69,7 +69,7 @@
+ typedef int (*sd_event_io_handler_t)(sd_event_source *s, int fd, uint32_t revents, void *userdata);
+ typedef int (*sd_event_time_handler_t)(sd_event_source *s, uint64_t usec, void *userdata);
+ typedef int (*sd_event_signal_handler_t)(sd_event_source *s, const struct signalfd_siginfo *si, void *userdata);
+-#if defined _GNU_SOURCE || _POSIX_C_SOURCE >= 199309L
++#if defined _GNU_SOURCE || (defined _POSIX_C_SOURCE && _POSIX_C_SOURCE >= 199309L)
+ typedef int (*sd_event_child_handler_t)(sd_event_source *s, const siginfo_t *si, void *userdata);
+ #else
+ typedef void* sd_event_child_handler_t;
diff --git a/srcpkgs/elogind/template b/srcpkgs/elogind/template
index 5b2589479bc..e7726c1cdbe 100644
--- a/srcpkgs/elogind/template
+++ b/srcpkgs/elogind/template
@@ -1,7 +1,7 @@
 # Template file for 'elogind'
 pkgname=elogind
 version=235.3
-revision=1
+revision=2
 build_style=meson
 hostmakedepends="intltool pkg-config gperf docbook-xsl gettext-devel shadow m4 libxslt git"
 makedepends="libcap-devel libmount-devel libseccomp-devel libblkid-devel pam-devel gettext-devel eudev-libudev-devel acl-devel glib-devel"