diff --git a/src/couch_index_compactor.erl b/src/couch_index_compactor.erl
index b8b1ecc..72bff51 100644
--- a/src/couch_index_compactor.erl
+++ b/src/couch_index_compactor.erl
@@ -103,6 +103,7 @@
     {ok, NewIdxState} = couch_util:with_db(DbName, fun(Db) ->
         Mod:compact(Db, IdxState, Opts)
     end),
+    ok = Mod:commit(NewIdxState),
     case gen_server:call(Idx, {compacted, NewIdxState}) of
         recompact ->
             ?LOG_INFO("Compaction restarting for db: ~s idx: ~s", Args),