diff --git a/.github/actions/bench/action.yml b/.github/actions/bench/action.yml
index 48e93395b4..f1eb44705a 100644
--- a/.github/actions/bench/action.yml
+++ b/.github/actions/bench/action.yml
@@ -91,7 +91,7 @@ runs:
     - name: Check namespace
       shell: ${{ env.SHELL }}
       run: |
-        check-namespace
+        ./scripts/check-namespace
     - name: Store benchmark result
       uses: benchmark-action/github-action-benchmark@d48d326b4ca9ba73ca0cd0d59f108f9e02a381c7 # v1.20.4
       with:
diff --git a/.github/workflows/bench.yml b/.github/workflows/bench.yml
index 08942284b1..a360f33ae9 100644
--- a/.github/workflows/bench.yml
+++ b/.github/workflows/bench.yml
@@ -69,6 +69,14 @@ jobs:
           ldflags: "-flto"
           bench_extra_args: "-r"
           nix_shell: ci-bench
+        - system: pqcp-ppc64
+          name:  ppc64le (POWER10) benchmarks
+          bench_pmu: PERF
+          archflags: "-mcpu=native"
+          cflags: "-flto -DMLK_FORCE_PPC64LE"
+          ldflags: "-flto"
+          bench_extra_args: "-r"
+          nix_shell: ''
     if: github.repository_owner == 'pq-code-package' && (github.event.label.name == 'benchmark' || github.ref == 'refs/heads/main')
     runs-on: self-hosted-${{ matrix.target.system }}
     steps:
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5f790b72b7..0d5b67815b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -173,6 +173,22 @@ jobs:
           compile_mode: ${{ matrix.target.mode }}
           cflags: "-DMLKEM_DEBUG"
           opt: 'opt'
+  ppc64le_tests:
+    if: github.repository_owner == 'pq-code-package' && !github.event.pull_request.head.repo.fork
+    name: Functional tests (ppc64le/POWER10, native)
+    runs-on: pqcp-ppc64
+    steps:
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - name: build + test
+        uses: ./.github/actions/multi-functest
+        with:
+          nix-shell: ''
+          cflags: "-DMLK_FORCE_PPC64LE"
+      - name: build + test (+debug)
+        uses: ./.github/actions/multi-functest
+        with:
+          nix-shell: ''
+          cflags: "-DMLKEM_DEBUG -DMLK_FORCE_PPC64LE"
   backend_tests:
     name: AArch64 FIPS202 backends (${{ matrix.backend }})
     strategy: