diff --git a/Snakefile b/Snakefile
index bb85f9b1..4da244ba 100644
--- a/Snakefile
+++ b/Snakefile
@@ -3,7 +3,7 @@ configfile: "config.yaml"
 localrules: all # , extract_summaries, plot_network, scenario_comparions
 
 wildcard_constraints:
-    lv="[0-9\.]+",
+    lv="[0-9\.]+|inf",
     simpl="[a-zA-Z0-9]*",
     clusters="[0-9]+m?",
     sectors="[+a-zA-Z0-9]+",
diff --git a/scripts/prepare_network.py b/scripts/prepare_network.py
index e98d9ff1..de52ce69 100644
--- a/scripts/prepare_network.py
+++ b/scripts/prepare_network.py
@@ -115,6 +115,7 @@ if __name__ == "__main__":
     # if 'Ep' in opts:
     #     add_emission_prices(n)
 
-    set_line_volume_limit(n, float(snakemake.wildcards.lv))
+    if snakemake.wildcards.lv != 'inf':
+        set_line_volume_limit(n, float(snakemake.wildcards.lv))
 
     n.export_to_netcdf(snakemake.output[0])