diff --git a/sf_daq_broker/writer/utils.py b/sf_daq_broker/writer/utils.py
index 118dcc3..c99c5fe 100644
--- a/sf_daq_broker/writer/utils.py
+++ b/sf_daq_broker/writer/utils.py
@@ -35,8 +35,8 @@ channel_type_deserializer_mapping = {
     "uint64":  ("u8", deserialize_number),
     "float32": ("f4", deserialize_number),
     "float64": ("f8", deserialize_number),
-    "string":  ("u1", deserialize_string),
-    "bool":    ("u1", deserialize_number)
+    "bool":    ("u1", deserialize_number),
+    "string":  ("u1", deserialize_string)
 }