diff --git a/.github/workflows/reuse.yml b/.github/workflows/reuse.yml
index c55ba6df40d..1ddd0a77644 100644
--- a/.github/workflows/reuse.yml
+++ b/.github/workflows/reuse.yml
@@ -24,7 +24,7 @@ jobs:
       with:
         args: spdx
     - name: install dependencies
-      run: sudo apt-get install -y cmake
+      run: sudo apt-get update && sudo apt-get install -y cmake
     - name: Create CGAL internal release
       run: |
         mkdir -p ./release
diff --git a/Triangulation/include/CGAL/Triangulation_ds_full_cell.h b/Triangulation/include/CGAL/Triangulation_ds_full_cell.h
index 3e84630dbd9..cb361f856e3 100644
--- a/Triangulation/include/CGAL/Triangulation_ds_full_cell.h
+++ b/Triangulation/include/CGAL/Triangulation_ds_full_cell.h
@@ -249,7 +249,9 @@ class Triangulation_ds_full_cell
     const Vertex_handle_array & vertices() const {return combinatorics_.vertices_; }
 
     // DATA MEMBERS
-    Combinatorics       combinatorics_;
+    // With the Itanium ABI, [[no_unique_address]] allows tda_data_ to reuse the
+    // padding bytes at the end of combinatorics_ when using the mirror policy.
+    CGAL_NO_UNIQUE_ADDRESS Combinatorics combinatorics_;
     mutable TDS_data    tds_data_;
 };