diff --git a/CommonTools/RecoAlgos/interface/ClusterStorer.h b/CommonTools/RecoAlgos/interface/ClusterStorer.h
index af9ff64161193..6066bbb1c4e1a 100644
--- a/CommonTools/RecoAlgos/interface/ClusterStorer.h
+++ b/CommonTools/RecoAlgos/interface/ClusterStorer.h
@@ -65,7 +65,7 @@ namespace helper {
       /// Set the reference of the hit of this record to 'newRef',
       /// will not modify the ref stored in this object.
       template <typename RecHitType>
-      void rekey(const ClusterRefType &newRef) const;
+      void rekey(const ClusterRefType &newRef);
 
     private:
       ClusterHitRecord() {}  /// private => unusable
diff --git a/CommonTools/RecoAlgos/src/ClusterStorer.cc b/CommonTools/RecoAlgos/src/ClusterStorer.cc
index f23df0ace7ae6..24db306e50b0f 100644
--- a/CommonTools/RecoAlgos/src/ClusterStorer.cc
+++ b/CommonTools/RecoAlgos/src/ClusterStorer.cc
@@ -105,7 +105,7 @@ namespace helper {
                                       edmNew::DetSetVector<ClusterType> &dsvToFill,
                                       edm::RefProd<edmNew::DetSetVector<ClusterType> > &refprod) {
     std::sort(clusterRecords.begin(), clusterRecords.end());  // this sorts them by detid
-    typedef typename std::vector<ClusterHitRecord<typename HitType::ClusterRef> >::const_iterator RIT;
+    typedef typename std::vector<ClusterHitRecord<typename HitType::ClusterRef> >::iterator RIT;
     RIT it = clusterRecords.begin(), end = clusterRecords.end();
     size_t clusters = 0;
     while (it != end) {
@@ -143,7 +143,7 @@ namespace helper {
   // generic rekey (in practise for pixel only...)
   template <typename ClusterRefType>  // template for class
   template <typename RecHitType>      // template for member function
-  void ClusterStorer::ClusterHitRecord<ClusterRefType>::rekey(const ClusterRefType &newRef) const {
+  void ClusterStorer::ClusterHitRecord<ClusterRefType>::rekey(const ClusterRefType &newRef) {
     TrackingRecHit &genericHit = (*hits_)[index_];
     RecHitType *hit = nullptr;
     if (genericHit.geographicalId().rawId() == detid_) {  // a hit on this det, so it's simple
@@ -159,9 +159,7 @@ namespace helper {
   // RecHitType is not used.
   template <>
   template <typename RecHitType>  // or template<> to specialise also here?
-  void ClusterStorer::ClusterHitRecord<SiStripRecHit2D::ClusterRef>::
-      //  rekey<SiStripRecHit2D>(const SiStripRecHit2D::ClusterRef &newRef) const
-      rekey(const SiStripRecHit2D::ClusterRef &newRef) const {
+  void ClusterStorer::ClusterHitRecord<SiStripRecHit2D::ClusterRef>::rekey(const SiStripRecHit2D::ClusterRef &newRef) {
     TrackingRecHit &genericHit = (*hits_)[index_];
     const std::type_info &hit_type = typeid(genericHit);
 
@@ -182,4 +180,28 @@ namespace helper {
     (*cluRef) = OmniClusterRef(newRef);
   }
 
+  // -------------------------------------------------------------
+  // Specific rekey for class template ClusterRefType = VectorHit::ClusterRef,
+  // RecHitType is not used.
+  template <>
+  template <typename RecHitType>  // or template<> to specialise also here?
+  void ClusterStorer::ClusterHitRecord<VectorHit::ClusterRef>::rekey(const VectorHit::ClusterRef &newRef) {
+    TrackingRecHit &genericHit = (*hits_)[index_];
+    const std::type_info &hit_type = typeid(genericHit);
+
+    OmniClusterRef *cluRef = nullptr;
+    if (typeid(VectorHit) == hit_type) {
+      VectorHit &vHit = static_cast<VectorHit &>(genericHit);
+      // FIXME: this essentially uses a hack
+      // https://github.com/cms-sw/cmssw/blob/master/DataFormats/TrackerCommon/interface/TrackerTopology.h#L291
+      cluRef = (SiStripDetId(detid_).stereo() ? &vHit.upperClusterRef() : &vHit.lowerClusterRef());
+    } else {
+      return;
+    }
+
+    assert(cluRef != nullptr);            // to catch missing RecHit types
+    assert(cluRef->key() == ref_.key());  // otherwise something went wrong
+    (*cluRef) = OmniClusterRef(newRef);
+  }
+
 }  // namespace helper
diff --git a/Configuration/PyReleaseValidation/python/upgradeWorkflowComponents.py b/Configuration/PyReleaseValidation/python/upgradeWorkflowComponents.py
index 4f3046fbdf09a..b012fd5f21a19 100644
--- a/Configuration/PyReleaseValidation/python/upgradeWorkflowComponents.py
+++ b/Configuration/PyReleaseValidation/python/upgradeWorkflowComponents.py
@@ -452,7 +452,7 @@ class UpgradeWorkflow_vectorHits(UpgradeWorkflow):
     def setup_(self, step, stepName, stepDict, k, properties):
         stepDict[stepName][k] = merge([{'--procModifiers': 'vectorHits'}, stepDict[step][k]])
     def condition(self, fragment, stepList, key, hasHarvest):
-        return fragment=="TTbar_14TeV" and '2026' in key
+        return (fragment=="TTbar_14TeV" or fragment=="SingleMuPt10Extended") and '2026' in key
 upgradeWFs['vectorHits'] = UpgradeWorkflow_vectorHits(
     steps = [
         'RecoGlobal',
diff --git a/DataFormats/TrackerRecHit2D/interface/VectorHit.h b/DataFormats/TrackerRecHit2D/interface/VectorHit.h
index df0a771f686d8..2f54b77117c96 100644
--- a/DataFormats/TrackerRecHit2D/interface/VectorHit.h
+++ b/DataFormats/TrackerRecHit2D/interface/VectorHit.h
@@ -92,6 +92,9 @@ class VectorHit final : public BaseTrackerRecHit {
   ClusterRef upperCluster() const { return theUpperCluster.cluster_phase2OT(); }
   OmniClusterRef const lowerClusterRef() const { return theLowerCluster; }
   OmniClusterRef const upperClusterRef() const { return theUpperCluster; }
+  // Non const variants needed for cluster re-keying
+  OmniClusterRef& lowerClusterRef() { return theLowerCluster; }
+  OmniClusterRef& upperClusterRef() { return theUpperCluster; }
 
   //FIXME::to update with a proper CPE maybe...
   Global3DPoint lowerGlobalPos() const;