diff --git a/dap/accumulator.py b/dap/accumulator.py
index 5781c9d..d0353ae 100644
--- a/dap/accumulator.py
+++ b/dap/accumulator.py
@@ -73,7 +73,7 @@ def accumulate(accumulator_addr, bsread_host, bsread_port, bsread_window):
             try:
                 sender.send(pulse_id=pulse_id, timestamp=timestamp, data=data)
             except:
-                log.exception(f"bsread failed to send: {data}")
+                log.exception(f"{pulse_id} bsread failed to send: {data}")
 
 
 
diff --git a/dap/worker.py b/dap/worker.py
index d0dbb8d..cc18bff 100644
--- a/dap/worker.py
+++ b/dap/worker.py
@@ -69,7 +69,7 @@ def work(backend_addr, accumulator_addr, visualisation_addr, fn_config, skip_fra
         try:
             config = config_file.load()
         except:
-            log.exception(f"({pulse_id}) cannot read config file")
+            log.exception(f"({pulse_id}) cannot read config file: {config_file.fname}")
 
 
         results = metadata.copy()