diff --git a/artiq/management/file_import.py b/artiq/management/file_import.py
index d1f59fdd1..f183b142b 100644
--- a/artiq/management/file_import.py
+++ b/artiq/management/file_import.py
@@ -1,7 +1,10 @@
 import importlib.machinery
+import linecache
 
 
 def file_import(filename):
+    linecache.checkcache(filename)
+
     modname = filename
     i = modname.rfind("/")
     if i > 0: