diff --git a/Snakefile b/Snakefile
index 79db6c83a..5b2de322e 100644
--- a/Snakefile
+++ b/Snakefile
@@ -53,7 +53,7 @@ ATLITE_NPROCESSES = config["atlite"].get("nprocesses", 4)
 
 wildcard_constraints:
     simpl="[a-zA-Z0-9]*|all",
-    clusters="[0-9]+(m|flex|min)?|all",
+    clusters="[0-9]+(m|flex)?|all|min",
     ll="(v|c)([0-9\.]+|opt|all)|all",
     opts="[-+a-zA-Z0-9\.]*",
     unc="[-+a-zA-Z0-9\.]*",
diff --git a/doc/release_notes.rst b/doc/release_notes.rst
index aca52b188..f1e2d6441 100644
--- a/doc/release_notes.rst
+++ b/doc/release_notes.rst
@@ -24,6 +24,8 @@ E.g. if a new rule becomes available describe how to use it `snakemake -j1 run_t
 
 **Minor Changes and bug-fixing**
 
+* Minor bug-fixing to run the cluster wildcard min `PR #1019 <https://github.com/pypsa-meets-earth/pypsa-earth/pull/1019>`__
+
 * Add option to adjust load scale for each individual countries `PR #1006 <https://github.com/pypsa-meets-earth/pypsa-earth/pull/1006>`__
 
 * Minor bug-fixing to get the generalised line types work for DC lines and AC lines. `PR #1008 <https://github.com/pypsa-meets-earth/pypsa-earth/pull/1008>`__ , `PR #1011 <https://github.com/pypsa-meets-earth/pypsa-earth/pull/1011>`__ and `PR #1013 <https://github.com/pypsa-meets-earth/pypsa-earth/pull/1013>`__
diff --git a/scripts/cluster_network.py b/scripts/cluster_network.py
index 6b559deba..a7683e82e 100644
--- a/scripts/cluster_network.py
+++ b/scripts/cluster_network.py
@@ -691,6 +691,8 @@ def cluster_regions(busmaps, inputs, output):
         "exclude_carriers", []
     )
     aggregate_carriers = set(n.generators.carrier) - set(exclude_carriers)
+
+    n.determine_network_topology()
     if snakemake.wildcards.clusters.endswith("m"):
         n_clusters = int(snakemake.wildcards.clusters[:-1])
         aggregate_carriers = snakemake.params.electricity.get("conventional_carriers")