diff --git a/Changelog.md b/Changelog.md
index de2462ba..54f672ec 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,4 +1,5 @@
 # Changelog
 
+- fix the hydrogen import boundary condition
 - add primary oil bus and account for refinery emissions
 - added Changelog file
diff --git a/config/config.yaml b/config/config.yaml
index 7dda0847..0ecd1edb 100644
--- a/config/config.yaml
+++ b/config/config.yaml
@@ -5,7 +5,7 @@
 # docs in https://pypsa-eur.readthedocs.io/en/latest/configuration.html#run
 run:
 
-  prefix: 240806oilrefineries
+  prefix: 20240807fix_hydrogen_import_constraint
 
   name:
   # - CurrentPolicies
diff --git a/workflow/scripts/additional_functionality.py b/workflow/scripts/additional_functionality.py
index e6670697..2ff02cbf 100644
--- a/workflow/scripts/additional_functionality.py
+++ b/workflow/scripts/additional_functionality.py
@@ -129,14 +129,18 @@ def h2_import_limits(n, investment_year, limits_volume_max):
         limit = limits_volume_max["h2_import"][ct][investment_year] * 1e6
 
         logger.info(f"limiting H2 imports in {ct} to {limit/1e6} TWh/a")
-
+        pipeline_carrier = [
+            "H2 pipeline",
+            "H2 pipeline (Kernnetz)",
+            "H2 pipeline retrofitted",
+        ]
         incoming = n.links.index[
-            (n.links.carrier == "H2 pipeline")
+            (n.links.carrier.isin(pipeline_carrier))
             & (n.links.bus0.str[:2] != ct)
             & (n.links.bus1.str[:2] == ct)
         ]
         outgoing = n.links.index[
-            (n.links.carrier == "H2 pipeline")
+            (n.links.carrier.isin(pipeline_carrier))
             & (n.links.bus0.str[:2] == ct)
             & (n.links.bus1.str[:2] != ct)
         ]
diff --git a/workflow/scripts/modify_prenetwork.py b/workflow/scripts/modify_prenetwork.py
index 07666bbe..971d981f 100644
--- a/workflow/scripts/modify_prenetwork.py
+++ b/workflow/scripts/modify_prenetwork.py
@@ -587,10 +587,10 @@ def aladin_mobility_demand(n):
         snakemake = mock_snakemake(
             "modify_prenetwork",
             simpl="",
-            clusters=44,
+            clusters=22,
             opts="",
             ll="vopt",
-            sector_opts="None",
+            sector_opts="none",
             planning_horizons="2020",
             run="KN2045_Bal_v4",
         )