diff --git a/scripts/add_electricity.py b/scripts/add_electricity.py
index 2f6251f0..7cea165b 100755
--- a/scripts/add_electricity.py
+++ b/scripts/add_electricity.py
@@ -161,7 +161,7 @@ def sanitize_carriers(n, config):
 
     for c in n.iterate_components():
         if "carrier" in c.df:
-            add_missing_carriers(n, c.df)
+            add_missing_carriers(n, c.df.carrier)
 
     carrier_i = n.carriers.index
     nice_names = (