diff --git a/engines/ep/src/linked_list.cc b/engines/ep/src/linked_list.cc
index d9f30cc98c..7be3238ceb 100644
--- a/engines/ep/src/linked_list.cc
+++ b/engines/ep/src/linked_list.cc
@@ -242,6 +242,7 @@ size_t BasicLinkedList::purgeTombstones(
                 //  so next time purge is attempted it will resume from here (the
                 //  range lock "blocking" part of the requested seqno range may have
                 //  moved/gone)
+                std::lock_guard<std::mutex> writeGuard(getListWriteLock());
                 pausedPurgePoint = it;
             }
             // reached the end of the locked range, stop