diff --git a/lldb/test/source-manager/TestSourceManager.py b/lldb/test/source-manager/TestSourceManager.py
index 7c0425f..a41c7a3 100644
--- a/lldb/test/source-manager/TestSourceManager.py
+++ b/lldb/test/source-manager/TestSourceManager.py
@@ -44,7 +44,7 @@
 
         # Launch the process, and do not stop at the entry point.
         error = lldb.SBError()
-        process = target.Launch (None, None, os.ctermid(), os.ctermid(), os.ctermid(), None, 0, False, error)
+        process = target.Launch (self.dbg.GetListener(), None, None, os.ctermid(), os.ctermid(), os.ctermid(), None, 0, False, error)
 
         #
         # Exercise Python APIs to display source lines.