diff --git a/python/slsdet/detector.py b/python/slsdet/detector.py
index 4e9d89868..efd08cc78 100755
--- a/python/slsdet/detector.py
+++ b/python/slsdet/detector.py
@@ -780,7 +780,8 @@ class Detector(CppDetectorApi):
 
     @rx_hostname.setter
     def rx_hostname(self, hostname):
-        self.setRxHostname(hostname)
+        args = hostname_list(hostname)
+        self.setRxHostname(args)
 
     @property
     @element