diff --git a/sys-apps/flatpak/flatpak-1.12.3-r1.ebuild b/sys-apps/flatpak/flatpak-1.12.3-r1.ebuild
index 6914f29a7ab8e..b2a47a674fcc4 100644
--- a/sys-apps/flatpak/flatpak-1.12.3-r1.ebuild
+++ b/sys-apps/flatpak/flatpak-1.12.3-r1.ebuild
@@ -100,3 +100,9 @@ src_configure() {
 
 	econf "${myeconfargs[@]}"
 }
+
+src_install() {
+	default
+	# resolve conflict with acct-user/flatpak for #856706
+	rm -rf "${ED}/usr/lib/sysusers.d"
+}
diff --git a/sys-apps/flatpak/flatpak-1.14.1.ebuild b/sys-apps/flatpak/flatpak-1.14.1.ebuild
index d69ef1b584b35..af8f10e803c29 100644
--- a/sys-apps/flatpak/flatpak-1.14.1.ebuild
+++ b/sys-apps/flatpak/flatpak-1.14.1.ebuild
@@ -103,4 +103,6 @@ src_install() {
 	default
 	# https://projects.gentoo.org/qa/policy-guide/installed-files.html#pg0303
 	find "${ED}" -name '*.la' -delete || die
+	# resolve conflict with acct-user/flatpak for #856706
+	rm -rf "${ED}/usr/lib/sysusers.d"
 }