diff --git a/csaxs_bec/devices/omny/galil/galil_rio.py b/csaxs_bec/devices/omny/galil/galil_rio.py
index 968ca37..e2273ae 100644
--- a/csaxs_bec/devices/omny/galil/galil_rio.py
+++ b/csaxs_bec/devices/omny/galil/galil_rio.py
@@ -152,8 +152,9 @@ class GalilRIO(PSIDeviceBase):
         res = {}
 
         # This yields tuples of cpt, signal
-        for _, signal in self._get_components_of_kind(Kind.normal):
-            channels.append((signal._channel, signal.name))  # pylint: disable=protected-access
+        for walk in self.walk_signals(Kind.normal):
+            if isinstance(walk.item, GalilRIOSignalRO):
+                channels.append((signal._channel, signal.name))  # pylint: disable=protected-access
 
         # Read all channels in one command
         cmd = "MG@" + ",@".join([f"AN[{ii}]" for ii, _ in channels])