diff --git a/releases/specs/sparc/sparc/systemd-stage1-mu.spec b/releases/specs/sparc/sparc/systemd-stage1-mu.spec
new file mode 100644
index 00000000..2af6a51b
--- /dev/null
+++ b/releases/specs/sparc/sparc/systemd-stage1-mu.spec
@@ -0,0 +1,12 @@
+subarch: sparc
+target: stage1
+version_stamp: systemd-mergedusr-@TIMESTAMP@
+rel_type: default
+profile: default/linux/sparc/17.0/systemd/merged-usr
+snapshot: @TIMESTAMP@
+source_subpath: default/stage3-sparc-systemd-mergedusr-latest
+compression_mode: pixz
+update_seed: no
+update_seed_command: --update --deep --newuse @world
+portage_confdir: @REPO_DIR@/releases/portage/stages
+portage_prefix: releng
diff --git a/releases/specs/sparc/sparc/systemd-stage3-mu.spec b/releases/specs/sparc/sparc/systemd-stage3-mu.spec
new file mode 100644
index 00000000..d496942a
--- /dev/null
+++ b/releases/specs/sparc/sparc/systemd-stage3-mu.spec
@@ -0,0 +1,10 @@
+subarch: sparc
+target: stage3
+version_stamp: systemd-mergedusr-@TIMESTAMP@
+rel_type: default
+profile: default/linux/sparc/17.0/systemd/merged-usr
+snapshot: @TIMESTAMP@
+source_subpath: default/stage1-sparc-systemd-mergedusr-@TIMESTAMP@
+compression_mode: pixz
+portage_confdir: @REPO_DIR@/releases/portage/stages
+portage_prefix: releng
diff --git a/releases/specs/sparc/sparc64/systemd-stage1-mu.spec b/releases/specs/sparc/sparc64/systemd-stage1-mu.spec
new file mode 100644
index 00000000..a4efb94a
--- /dev/null
+++ b/releases/specs/sparc/sparc64/systemd-stage1-mu.spec
@@ -0,0 +1,12 @@
+subarch: sparc64
+target: stage1
+version_stamp: systemd-mergedusr-@TIMESTAMP@
+rel_type: default
+profile: default/linux/sparc/17.0/64ul/systemd/merged-usr
+snapshot: @TIMESTAMP@
+source_subpath: default/stage3-sparc64-systemd-mergedusr-latest
+compression_mode: pixz
+update_seed: no
+update_seed_command: --update --deep --newuse @world
+portage_confdir: @REPO_DIR@/releases/portage/stages
+portage_prefix: releng
diff --git a/releases/specs/sparc/sparc64/systemd-stage3-mu.spec b/releases/specs/sparc/sparc64/systemd-stage3-mu.spec
new file mode 100644
index 00000000..ce74d020
--- /dev/null
+++ b/releases/specs/sparc/sparc64/systemd-stage3-mu.spec
@@ -0,0 +1,10 @@
+subarch: sparc64
+target: stage3
+version_stamp: systemd-mergedusr-@TIMESTAMP@
+rel_type: default
+profile: default/linux/sparc/17.0/64ul/systemd/merged-usr
+snapshot: @TIMESTAMP@
+source_subpath: default/stage1-sparc64-systemd-mergedusr-@TIMESTAMP@
+compression_mode: pixz
+portage_confdir: @REPO_DIR@/releases/portage/stages
+portage_prefix: releng
diff --git a/tools/catalyst-auto-sparc64.conf b/tools/catalyst-auto-sparc64.conf
index fc346e21..668fc265 100644
--- a/tools/catalyst-auto-sparc64.conf
+++ b/tools/catalyst-auto-sparc64.conf
@@ -5,7 +5,7 @@ UPLOAD_USER=sparc
 UPLOAD_KEY=/root/.ssh/id_ed25519
 SPECS_DIR=${REPO_DIR}/releases/specs/sparc
 
-SPECS="sparc/stage1.spec sparc/stage3.spec sparc/systemd-stage1.spec sparc/systemd-stage3.spec sparc64/stage1.spec sparc64/stage3.spec sparc64/systemd-stage1.spec sparc64/systemd-stage3.spec"
+SPECS="sparc/stage1.spec sparc/stage3.spec sparc/systemd-stage1.spec sparc/systemd-stage3.spec sparc/systemd-stage1-mu.spec sparc/systemd-stage3-mu.spec sparc64/stage1.spec sparc64/stage3.spec sparc64/systemd-stage1.spec sparc64/systemd-stage3.spec sparc64/systemd-stage1-mu.spec sparc64/systemd-stage3-mu.spec"
 OPTIONAL_SPECS="sparc64/installcd-stage1.spec sparc64/installcd-stage2-minimal.spec"
 
 KCONFIG_DIR=${REPO_DIR}/releases/kconfig/sparc
@@ -44,12 +44,18 @@ post_build() {
 	sparc/systemd-stage3.spec)
 		upload stage3-sparc-systemd-${TIMESTAMP}*.xz*
 		;;
+	sparc/systemd-stage3-mu.spec)
+		upload stage3-sparc-systemd-mergedusr-${TIMESTAMP}*.xz*
+		;;
 	sparc64/stage3.spec)
 		upload stage3-sparc64-${TIMESTAMP}*.xz*
 		;;
 	sparc64/systemd-stage3.spec)
 		upload stage3-sparc64-systemd-${TIMESTAMP}*.xz*
 		;;
+	sparc64/systemd-stage3-mu.spec)
+		upload stage3-sparc64-systemd-mergedusr-${TIMESTAMP}*.xz*
+		;;
 	*)
 		echo "Finished ${spec}"
 		;;