diff --git a/climate_categories/_conversions.py b/climate_categories/_conversions.py
index 77a2a54..2fa4a55 100644
--- a/climate_categories/_conversions.py
+++ b/climate_categories/_conversions.py
@@ -901,24 +901,25 @@ def __init__(
 
     @classmethod
     def from_csv(cls, filepath):
-        conv = ConversionSpec.from_csv(filepath)
+        return ConversionSpec.from_csv(filepath)
+
+        # def get_cats(cat_names):
+        #     import climate_categories
+        #
+        #     return {
+        #         cat_name: climate_categories.cats[cat_name] for cat_name in cat_names
+        #     }
+        #
+        # cat_names = [
+        #     conv.categorization_a_name,
+        #     conv.categorization_b_name,
+        #     *conv.auxiliary_categorizations_names,
+        # ]
+        #
+        # cats = get_cats(cat_names)
+        #
+        # return conv.hydrate(cats=cats)
 
-        def get_cats(cat_names):
-            import climate_categories
-
-            return {
-                cat_name: climate_categories.cats[cat_name] for cat_name in cat_names
-            }
-
-        cat_names = [
-            conv.categorization_a_name,
-            conv.categorization_b_name,
-            *conv.auxiliary_categorizations_names,
-        ]
-
-        cats = get_cats(cat_names)
-
-        return conv.hydrate(cats=cats)
 
     def reversed(self) -> "Conversion":
         """Returns the Conversion with categorization_a and categorization_b swapped."""
diff --git a/climate_categories/tests/test_conversions.py b/climate_categories/tests/test_conversions.py
index 560db2c..9ee59c2 100644
--- a/climate_categories/tests/test_conversions.py
+++ b/climate_categories/tests/test_conversions.py
@@ -429,13 +429,9 @@ def test_relevant_rules():
 
 
 def test_read_csv_in_conversion_class():
-    filepath = importlib.resources.files("climate_categories.data").joinpath(
-        "conversion.IPCC1996.IPCC2006.csv"
-    )
-    conv = conversions.Conversion.from_csv(filepath)
 
-    assert conv.categorization_a_name == "IPCC1996"
-    assert conv.categorization_b_name == "IPCC2006"
+    conv_from_conversion = conversions.Conversion.from_csv("data/good_conversion.csv")
+
+    conv_from_conversion_spec = conversions.ConversionSpec.from_csv("data/good_conversion.csv")
 
-    # make sure hydrate() added all the rules
-    assert len(conv.rules) == 153
+    assert vars(conv_from_conversion_spec) == vars(conv_from_conversion)