backport of SERVER-5357

1 files changed, 1 insertions, 1 deletions

diff --git a/db/commands/mr.cpp b/db/commands/mr.cpp
index 9b10f99861e..30fa2a475bf 100644
--- a/db/commands/mr.cpp
+++ b/db/commands/mr.cpp
@@ -1207,7 +1207,7 @@ namespace mongo {
 
                             BSONObj res = config.reducer->finalReduce( values , config.finalizer.get());
                             if (state.isOnDisk())
-                                state.insertToInc(res);
+                                state.insert( config.tempLong , res );
                             else
                                 state.emit(res);
                             values.clear();