diff --git a/python/src/trezorlib/cli/__init__.py b/python/src/trezorlib/cli/__init__.py
index 8a4191a8e..91cd0ce1e 100644
--- a/python/src/trezorlib/cli/__init__.py
+++ b/python/src/trezorlib/cli/__init__.py
@@ -40,14 +40,20 @@ if TYPE_CHECKING:
 
 
 class ChoiceType(click.Choice):
-    def __init__(self, typemap: Dict[str, Any]) -> None:
+    def __init__(self, typemap: Dict[str, Any], case_sensitive: bool = True) -> None:
         super().__init__(list(typemap.keys()))
-        self.typemap = typemap
+        self.case_sensitive = case_sensitive
+        if case_sensitive:
+            self.typemap = typemap
+        else:
+            self.typemap = {k.lower(): v for k, v in typemap.items()}
 
-    def convert(self, value: str, param: Any, ctx: click.Context) -> Any:
+    def convert(self, value: Any, param: Any, ctx: click.Context) -> Any:
         if value in self.typemap.values():
             return value
         value = super().convert(value, param, ctx)
+        if isinstance(value, str) and not self.case_sensitive:
+            value = value.lower()
         return self.typemap[value]