diff --git a/scripts/add_electricity.py b/scripts/add_electricity.py
index ef4966b4..c76aee05 100644
--- a/scripts/add_electricity.py
+++ b/scripts/add_electricity.py
@@ -120,8 +120,9 @@ def load_powerplants(n, ppl_fn=None):
 def attach_load(n):
     substation_lv_i = n.buses.index[n.buses['substation_lv']]
     regions = gpd.read_file(snakemake.input.regions).set_index('name').reindex(substation_lv_i)
-    opsd_load = timeseries_opsd(slice(*n.snapshots[[0,-1]].year.astype(str)),
-                                snakemake.input.opsd_load)*snakemake.config['load']['scaling_factor']
+    opsd_load = (timeseries_opsd(slice(*n.snapshots[[0,-1]].year.astype(str)),
+                                 snakemake.input.opsd_load) *
+                 snakemake.config.get('load', {}).get('scaling_factor', 1.0))
 
     # Convert to naive UTC (has to be explicit since pandas 0.24)
     opsd_load.index = opsd_load.index.tz_localize(None)