diff --git a/misc-scripts/id_mapping/default.conf b/misc-scripts/id_mapping/default.conf
index 4770785edf7bd40d122813bc1601531a2ffe3cb3..2d90cd045cbc51a2344afb34e29c86f502598848 100644
--- a/misc-scripts/id_mapping/default.conf
+++ b/misc-scripts/id_mapping/default.conf
@@ -34,7 +34,8 @@ build_cache_concurrent_jobs  = 200
 ;chromosomes                = 21,22
 
 ; LSF parameters
-lsf_opt_run                 = "-M7500000 -R'select[type==X86_64 && mem>7500],rusage[mem=7500]'"
+lsf_opt_run                 = "-M3500000 -R'select[type==X86_64 && mem>3500],rusage[mem=3500]'"
+;lsf_opt_run                 = "-M7500000 -R'select[type==X86_64 && mem>7500],rusage[mem=7500]'"
 ;lsf_opt_dump_cache          = "-M1700000 -R'select[type==X86_64 && mem>1700],rusage[mem=1700]'"
 
 ; ScoreBuilder
@@ -49,6 +50,10 @@ transcript_score_threshold  = 0
 synteny_rescore_jobs        = 20
 ;lsf_opt_synteny_rescore     = 
 
+; StableIdMapper
+mapping_types               = gene,transcript,translation,exon
+;plugin_stable_id_generator  = Bio::EnsEMBL::IdMapping::StableIdGenerator::EnsemblGeneric
+
 ; upload results into db
 upload_events               = 1
 upload_stable_ids           = 1