diff --git a/hbt/config/configs_run2ul.py b/hbt/config/configs_run2ul.py
index f4b7a843..8b50d021 100644
--- a/hbt/config/configs_run2ul.py
+++ b/hbt/config/configs_run2ul.py
@@ -561,6 +561,9 @@ def add_config(
     # external files
     json_mirror = "/afs/cern.ch/work/m/mrieger/public/mirrors/jsonpog-integration-9ea86c4c"
     cfg.x.external_files = DotDict.wrap({
+        # pileup weight corrections
+        "pu_sf": (f"{json_mirror}/POG/LUM/{year}{corr_postfix}_UL/puWeights.json.gz", "v1"),
+
         # jet energy correction
         "jet_jerc": (f"{json_mirror}/POG/JME/{year}{corr_postfix}_UL/jet_jerc.json.gz", "v1"),