diff --git a/idl/repair.idl.hh b/idl/repair.idl.hh
index 3a4d8732b9..de86f65a9e 100644
--- a/idl/repair.idl.hh
+++ b/idl/repair.idl.hh
@@ -22,7 +22,7 @@ class repair_hash {
 
 struct partition_key_and_mutation_fragments {
     partition_key get_key();
-    std::list<frozen_mutation_fragment> get_mutation_fragments();
+    utils::chunked_vector<frozen_mutation_fragment> get_mutation_fragments();
 };
 
 class repair_sync_boundary {
diff --git a/repair/repair.hh b/repair/repair.hh
index 2cad0337a5..be0841a750 100644
--- a/repair/repair.hh
+++ b/repair/repair.hh
@@ -195,19 +195,19 @@ struct node_repair_meta_id {
 // Represent a partition_key and frozen_mutation_fragments within the partition_key.
 class partition_key_and_mutation_fragments {
     partition_key _key;
-    std::list<frozen_mutation_fragment> _mfs;
+    utils::chunked_vector<frozen_mutation_fragment> _mfs;
 public:
     partition_key_and_mutation_fragments()
         : _key(std::vector<bytes>() ) {
     }
-    partition_key_and_mutation_fragments(partition_key key, std::list<frozen_mutation_fragment> mfs)
+    partition_key_and_mutation_fragments(partition_key key, utils::chunked_vector<frozen_mutation_fragment> mfs)
         : _key(std::move(key))
         , _mfs(std::move(mfs)) {
     }
     const partition_key& get_key() const { return _key; }
-    const std::list<frozen_mutation_fragment>& get_mutation_fragments() const { return _mfs; }
+    const utils::chunked_vector<frozen_mutation_fragment>& get_mutation_fragments() const { return _mfs; }
     partition_key& get_key() { return _key; }
-    std::list<frozen_mutation_fragment>& get_mutation_fragments() { return _mfs; }
+    utils::chunked_vector<frozen_mutation_fragment>& get_mutation_fragments() { return _mfs; }
     void push_mutation_fragment(frozen_mutation_fragment mf) { _mfs.push_back(std::move(mf)); }
     future<> clear_gently() { return utils::clear_gently(_mfs); };
 };
diff --git a/repair/row_level.hh b/repair/row_level.hh
index 213d713948..cfea757105 100644
--- a/repair/row_level.hh
+++ b/repair/row_level.hh
@@ -20,6 +20,7 @@
 #include <seastar/util/bool_class.hh>
 #include "utils/user_provided_param.hh"
 #include "locator/tablet_metadata_guard.hh"
+#include "utils/chunked_vector.hh"
 
 using namespace seastar;
 
diff --git a/test/boost/repair_test.cc b/test/boost/repair_test.cc
index 6f02bc60ef..9b225d2b58 100644
--- a/test/boost/repair_test.cc
+++ b/test/boost/repair_test.cc
@@ -23,6 +23,7 @@
 #include "test/lib/sstable_utils.hh"
 #include "readers/mutation_fragment_v1_stream.hh"
 #include "schema/schema_registry.hh"
+#include "utils/chunked_vector.hh"
 
 BOOST_AUTO_TEST_SUITE(repair_test)
 
@@ -93,7 +94,7 @@ repair_rows_on_wire make_random_repair_rows_on_wire(random_mutation_generator& g
         m->apply(mut);
         auto reader = mutation_fragment_v1_stream(m2->make_mutation_reader(s, permit));
         auto close_reader = deferred_close(reader);
-        std::list<frozen_mutation_fragment> mfs;
+        utils::chunked_vector<frozen_mutation_fragment> mfs;
         reader.consume_pausable([s, &mfs](mutation_fragment mf) {
             if ((mf.is_partition_start() && !mf.as_partition_start().partition_tombstone()) || mf.is_end_of_partition()) {
                 // Stream of mutations coming from the wire doesn't contain partition_end