diff --git a/omnipath_metabo/schema/_main.py b/omnipath_metabo/schema/_main.py
index dc54dc3..1df98b6 100644
--- a/omnipath_metabo/schema/_main.py
+++ b/omnipath_metabo/schema/_main.py
@@ -60,6 +60,12 @@ def __init__(self, resource, session):
 
 
     def load(self):
+        
+        insert_resource = insert(_structure.Resource).values(
+            name = self.resource.name
+        )
+        insert_resource = insert_resource.on_conflict_do_nothing(index_elements=['name'])
+        self.session.execute(insert_resource)
 
         for i, row in enumerate(self.resource):
 
diff --git a/omnipath_metabo/schema/_structure.py b/omnipath_metabo/schema/_structure.py
index 8b2297f..008e889 100644
--- a/omnipath_metabo/schema/_structure.py
+++ b/omnipath_metabo/schema/_structure.py
@@ -40,7 +40,7 @@ class Resource(Base):
 
 class Hmdb():
     scheme = Structure
-
+    name = 'HMDB'
     def __iter__(self):
 
         for met in hmdb.metabolites_processed('name','smiles'):
@@ -48,7 +48,7 @@ def __iter__(self):
 
 class SwissLipids():
     scheme = Structure
-
+    name = 'SwissLipids'
     def __iter__(self):
         for met in swisslipids.swisslipids_lipids():
             yield met['Lipid ID'], met['SMILES (pH7.3)']