diff --git a/debye_bec/devices/ionization_chambers/ionization_chamber.py b/debye_bec/devices/ionization_chambers/ionization_chamber.py
index 276f9b3..a829560 100644
--- a/debye_bec/devices/ionization_chambers/ionization_chamber.py
+++ b/debye_bec/devices/ionization_chambers/ionization_chamber.py
@@ -105,7 +105,7 @@ class IonizationChamber0(PSIDeviceBase):
         super().__init__(name=name, prefix=prefix, scan_info=scan_info, **kwargs)
 
     @typechecked
-    def set_gain(self, gain: Literal["1e6", "1e7", "5e7", "1e8", "1e9"] | AmplifierGain) -> None:
+    def set_gain(self, gain: Literal["1e6", "1e7", "5e7", "1e8", "1e9"]) -> None:
         """Configure the gain setting of the specified channel
 
         Args:
@@ -131,10 +131,7 @@ class IonizationChamber0(PSIDeviceBase):
                 self.amp.cGain_ENUM.put(AmplifierGain.G1E9)
 
     def set_filter(
-        self,
-        value: (
-            Literal["1us", "3us", "10us", "30us", "100us", "300us", "1ms", "3ms"] | AmplifierFilter
-        ),
+        self, value: Literal["1us", "3us", "10us", "30us", "100us", "300us", "1ms", "3ms"]
     ) -> None:
         """Configure the filter setting of the specified channel