diff --git a/scripts/prepare_sector_network.py b/scripts/prepare_sector_network.py
index 4ab681f8..82578c29 100755
--- a/scripts/prepare_sector_network.py
+++ b/scripts/prepare_sector_network.py
@@ -1988,7 +1988,12 @@ def add_heat(n, costs):
             ct = pop_layout.loc[node, "ct"]
 
             # weighting 'f' depending on the size of the population at the node
-            f = urban_fraction[node] if "urban" in name else (1 - urban_fraction[node])
+            if "urban central" in name:
+                f = dist_fraction[node]
+            elif "urban decentral" in name:
+                f = urban_fraction[node] - dist_fraction[node]
+            else:
+                f = 1 - urban_fraction[node]
             if f == 0:
                 continue
             # get sector name ("residential"/"services"/or both "tot" for urban central)