diff --git a/artiq/master/experiments.py b/artiq/master/experiments.py
index 851d5ac66..0edce0976 100644
--- a/artiq/master/experiments.py
+++ b/artiq/master/experiments.py
@@ -18,7 +18,7 @@ async def _get_repository_entries(entry_dict,
                                   root, filename, get_device_db, log):
     worker = Worker({
         "get_device_db": get_device_db,
-        "log": partial(log, "scan")
+        "log": partial(log, "scan", os.path.basename(filename))
     })
     try:
         description = await worker.examine(os.path.join(root, filename))
@@ -124,7 +124,7 @@ class ExperimentDB:
             filename = os.path.join(wd, filename)
         worker = Worker({
             "get_device_db": self.get_device_db_fn,
-            "log": partial(self.log_fn, "examine")
+            "log": partial(self.log_fn, "examine", os.path.basename(filename))
         })
         try:
             description = await worker.examine(filename)
diff --git a/artiq/master/log.py b/artiq/master/log.py
index ae87e015d..78def9d21 100644
--- a/artiq/master/log.py
+++ b/artiq/master/log.py
@@ -29,11 +29,11 @@ class LogBufferHandler(logging.Handler):
                                 part)
 
 
-def log_worker(rid, message):
+def log_worker(rid, filename, message):
     level, name, message = parse_log_message(message)
     log_with_name(name, level, message,
-                  extra={"source": "worker({})".format(rid)})
-log_worker.worker_pass_rid = True
+                  extra={"source": "worker({},{})".format(rid, filename)})
+log_worker.worker_pass_runinfo = True
 
 
 def log_args(parser):
diff --git a/artiq/master/worker.py b/artiq/master/worker.py
index b5877df0f..16b782a54 100644
--- a/artiq/master/worker.py
+++ b/artiq/master/worker.py
@@ -1,4 +1,5 @@
 import sys
+import os
 import asyncio
 import logging
 import subprocess
@@ -45,6 +46,7 @@ class Worker:
         self.send_timeout = send_timeout
 
         self.rid = None
+        self.filename = None
         self.process = None
         self.watchdogs = dict()  # wid -> expiration (using time.monotonic)
 
@@ -191,8 +193,8 @@ class Worker:
                 func = self.register_experiment
             else:
                 func = self.handlers[action]
-            if getattr(func, "worker_pass_rid", False):
-                func = partial(func, self.rid)
+            if getattr(func, "worker_pass_runinfo", False):
+                func = partial(func, self.rid, self.filename)
             try:
                 data = func(*obj["args"], **obj["kwargs"])
                 reply = {"status": "ok", "data": data}
@@ -227,6 +229,7 @@ class Worker:
 
     async def build(self, rid, pipeline_name, wd, expid, priority, timeout=15.0):
         self.rid = rid
+        self.filename = os.path.basename(expid["file"])
         await self._create_process(expid["log_level"])
         await self._worker_action(
             {"action": "build",