diff --git a/docs_src/multiple_values/arguments_with_multiple_values/tutorial003.py b/docs_src/multiple_values/arguments_with_multiple_values/tutorial003.py
index f752bdef87..bbfd575643 100644
--- a/docs_src/multiple_values/arguments_with_multiple_values/tutorial003.py
+++ b/docs_src/multiple_values/arguments_with_multiple_values/tutorial003.py
@@ -14,6 +14,7 @@ def main(
     names: Tuple[str, str, str, SuperHero] = typer.Argument(
         ("Harry", "Hermione", "Ron", "hero3"),
         enum_by_name=True,
+        case_sensitive=False,
         help="Select 4 characters to play with",
     ),
 ):
diff --git a/docs_src/multiple_values/arguments_with_multiple_values/tutorial003_an.py b/docs_src/multiple_values/arguments_with_multiple_values/tutorial003_an.py
index ac07a64b3d..662b9d7fa2 100644
--- a/docs_src/multiple_values/arguments_with_multiple_values/tutorial003_an.py
+++ b/docs_src/multiple_values/arguments_with_multiple_values/tutorial003_an.py
@@ -14,7 +14,7 @@ class SuperHero(str, Enum):
 def main(
     names: Annotated[
         Tuple[str, str, str, SuperHero],
-        typer.Argument(enum_by_name=True, help="Select 4 characters to play with"),
+        typer.Argument(enum_by_name=True, help="Select 4 characters to play with", case_sensitive=False),
     ] = ("Harry", "Hermione", "Ron", "hero3"),
 ):
     for name in names:
diff --git a/tests/test_tutorial/test_multiple_values/test_arguments_with_multiple_values/test_tutorial003_an.py b/tests/test_tutorial/test_multiple_values/test_arguments_with_multiple_values/test_tutorial003_an.py
index 814133dec4..6e5f8c2d09 100644
--- a/tests/test_tutorial/test_multiple_values/test_arguments_with_multiple_values/test_tutorial003_an.py
+++ b/tests/test_tutorial/test_multiple_values/test_arguments_with_multiple_values/test_tutorial003_an.py
@@ -37,7 +37,7 @@ def test_invalid_args():
 
 
 def test_valid_args():
-    result = runner.invoke(app, ["Draco", "Hagrid", "Dobby", "hero1"])
+    result = runner.invoke(app, ["Draco", "Hagrid", "Dobby", "HERO1"])
     assert result.exit_code == 0
     assert "Hello Draco" in result.stdout
     assert "Hello Hagrid" in result.stdout
diff --git a/typer/main.py b/typer/main.py
index f50ca9eb13..462f6d65bf 100644
--- a/typer/main.py
+++ b/typer/main.py
@@ -650,13 +650,13 @@ def convertor(value: Any) -> Any:
 
 
 def generate_enum_name_convertor(enum: Type[Enum]) -> Callable[..., Any]:
-    lower_name_map = {str(item.name).lower(): item for item in enum}
+    val_map = {str(item.name): item for item in enum}
 
     def convertor(value: Any) -> Any:
         if value is not None:
-            low = str(value).lower()
-            if low in lower_name_map:
-                return lower_name_map[low]
+            val = str(value)
+            if val in val_map:
+                return val_map[val]
 
     return convertor