diff --git a/dev-vcs/mercurial/mercurial-6.5.3-r2.ebuild b/dev-vcs/mercurial/mercurial-6.5.3-r2.ebuild
index 969e0594fd27e..933cf0197caad 100644
--- a/dev-vcs/mercurial/mercurial-6.5.3-r2.ebuild
+++ b/dev-vcs/mercurial/mercurial-6.5.3-r2.ebuild
@@ -197,6 +197,10 @@ RESTRICT="!test? ( test )"
 
 PATCHES=( "${FILESDIR}/python3.12.patch" )
 
+pkg_setup() {
+	use rust && rust_pkg_setup
+}
+
 src_unpack() {
 	default_src_unpack
 	if use rust; then
diff --git a/dev-vcs/mercurial/mercurial-6.6.2-r2.ebuild b/dev-vcs/mercurial/mercurial-6.6.2-r2.ebuild
index 9ee1dc0cfb348..5d8b7b8bc699b 100644
--- a/dev-vcs/mercurial/mercurial-6.6.2-r2.ebuild
+++ b/dev-vcs/mercurial/mercurial-6.6.2-r2.ebuild
@@ -207,6 +207,10 @@ RESTRICT="!test? ( test )"
 
 PATCHES=( "${FILESDIR}/python3.12.patch" )
 
+pkg_setup() {
+	use rust && rust_pkg_setup
+}
+
 src_unpack() {
 	default_src_unpack
 	if use rust; then
diff --git a/dev-vcs/mercurial/mercurial-6.7.4-r2.ebuild b/dev-vcs/mercurial/mercurial-6.7.4-r2.ebuild
index f68c7388f0143..5654ea2bc44db 100644
--- a/dev-vcs/mercurial/mercurial-6.7.4-r2.ebuild
+++ b/dev-vcs/mercurial/mercurial-6.7.4-r2.ebuild
@@ -218,6 +218,10 @@ RESTRICT="!test? ( test )"
 
 PATCHES=( "${FILESDIR}/python3.12.patch" )
 
+pkg_setup() {
+	use rust && rust_pkg_setup
+}
+
 src_unpack() {
 	default_src_unpack
 	if use rust; then
diff --git a/dev-vcs/mercurial/mercurial-6.8.1-r1.ebuild b/dev-vcs/mercurial/mercurial-6.8.1-r1.ebuild
index 2e09a308c5dfa..5673dd914f40d 100644
--- a/dev-vcs/mercurial/mercurial-6.8.1-r1.ebuild
+++ b/dev-vcs/mercurial/mercurial-6.8.1-r1.ebuild
@@ -234,6 +234,10 @@ SITEFILE="70${PN}-gentoo.el"
 
 RESTRICT="!test? ( test )"
 
+pkg_setup() {
+	use rust && rust_pkg_setup
+}
+
 src_unpack() {
 	default_src_unpack
 	if use rust; then
diff --git a/dev-vcs/mercurial/mercurial-9999.ebuild b/dev-vcs/mercurial/mercurial-9999.ebuild
index 3d26e755559cc..df6dbbf2a3de0 100644
--- a/dev-vcs/mercurial/mercurial-9999.ebuild
+++ b/dev-vcs/mercurial/mercurial-9999.ebuild
@@ -41,6 +41,10 @@ SITEFILE="70${PN}-gentoo.el"
 
 RESTRICT="!test? ( test )"
 
+pkg_setup() {
+	use rust && rust_pkg_setup
+}
+
 src_unpack() {
 	mercurial_src_unpack
 	if use rust; then