diff --git a/openapi_python_client/parser/properties/enum_property.py b/openapi_python_client/parser/properties/enum_property.py
index 0e095e455..fca4fc881 100644
--- a/openapi_python_client/parser/properties/enum_property.py
+++ b/openapi_python_client/parser/properties/enum_property.py
@@ -52,7 +52,7 @@ def values_from_list(values: List[ValueType]) -> Dict[str, ValueType]:
                 else:
                     output[f"VALUE_{value}"] = value
                 continue
-            if value[0].isalpha():
+            if value and value[0].isalpha():
                 key = value.upper()
             else:
                 key = f"VALUE_{i}"
diff --git a/tests/test_parser/test_properties/test_init.py b/tests/test_parser/test_properties/test_init.py
index 03515ea63..024a6e15e 100644
--- a/tests/test_parser/test_properties/test_init.py
+++ b/tests/test_parser/test_properties/test_init.py
@@ -516,7 +516,7 @@ def test_get_imports(self, mocker):
     def test_values_from_list(self):
         from openapi_python_client.parser.properties import EnumProperty
 
-        data = ["abc", "123", "a23", "1bc", 4, -3, "a Thing WIth spaces"]
+        data = ["abc", "123", "a23", "1bc", 4, -3, "a Thing WIth spaces", ""]
 
         result = EnumProperty.values_from_list(data)
 
@@ -528,6 +528,7 @@ def test_values_from_list(self):
             "VALUE_4": 4,
             "VALUE_NEGATIVE_3": -3,
             "A_THING_WITH_SPACES": "a Thing WIth spaces",
+            "VALUE_7": "",
         }
 
     def test_values_from_list_duplicate(self):