diff --git a/db/c.cc b/db/c.cc
index dde8f69fb..2a3d7b3bc 100644
--- a/db/c.cc
+++ b/db/c.cc
@@ -3881,10 +3881,11 @@ void rocksdb_options_set_row_cache(rocksdb_options_t* opt,
 }
 
 void rocksdb_options_add_compact_on_deletion_collector_factory(
-    rocksdb_options_t* opt, size_t window_size, size_t num_dels_trigger) {
+    rocksdb_options_t* opt, size_t window_size, size_t num_dels_trigger,
+    double deletion_ratio) {
   std::shared_ptr<ROCKSDB_NAMESPACE::TablePropertiesCollectorFactory>
-      compact_on_del =
-          NewCompactOnDeletionCollectorFactory(window_size, num_dels_trigger);
+      compact_on_del = NewCompactOnDeletionCollectorFactory(
+          window_size, num_dels_trigger, deletion_ratio);
   opt->rep.table_properties_collector_factories.emplace_back(compact_on_del);
 }
 
diff --git a/db/c_test.c b/db/c_test.c
index 57877c06b..da3e1c66c 100644
--- a/db/c_test.c
+++ b/db/c_test.c
@@ -720,7 +720,7 @@ int main(int argc, char** argv) {
   rocksdb_compactoptions_set_exclusive_manual_compaction(coptions, 1);
 
   rocksdb_options_add_compact_on_deletion_collector_factory(options, 10000,
-                                                            10001);
+                                                            10001, 0.0);
 
   StartPhase("destroy");
   rocksdb_destroy_db(options, dbname, &err);
diff --git a/include/rocksdb/c.h b/include/rocksdb/c.h
index 6e0ad08c8..159d58466 100644
--- a/include/rocksdb/c.h
+++ b/include/rocksdb/c.h
@@ -1615,7 +1615,8 @@ extern ROCKSDB_LIBRARY_API void rocksdb_options_set_row_cache(
 
 extern ROCKSDB_LIBRARY_API void
 rocksdb_options_add_compact_on_deletion_collector_factory(
-    rocksdb_options_t*, size_t window_size, size_t num_dels_trigger);
+    rocksdb_options_t*, size_t window_size, size_t num_dels_trigger,
+    double deletion_ratio);
 extern ROCKSDB_LIBRARY_API void rocksdb_options_set_manual_wal_flush(
     rocksdb_options_t* opt, unsigned char);
 extern ROCKSDB_LIBRARY_API unsigned char rocksdb_options_get_manual_wal_flush(
diff --git a/unreleased_history/public_api_changes/add_new_compaction_parameter.md b/unreleased_history/public_api_changes/add_new_compaction_parameter.md
new file mode 100644
index 000000000..4278ff4a6
--- /dev/null
+++ b/unreleased_history/public_api_changes/add_new_compaction_parameter.md
@@ -0,0 +1 @@
+Add parameter `deletion_ratio` to C API `rocksdb_options_add_compact_on_deletion_collector_factory`.
\ No newline at end of file