diff --git a/lldb/test/API/functionalities/postmortem/netbsd-core/TestNetBSDCore.py b/lldb/test/API/functionalities/postmortem/netbsd-core/TestNetBSDCore.py
index ff1ef21e02e31..179dbdf88fa8a 100644
--- a/lldb/test/API/functionalities/postmortem/netbsd-core/TestNetBSDCore.py
+++ b/lldb/test/API/functionalities/postmortem/netbsd-core/TestNetBSDCore.py
@@ -117,6 +117,8 @@ def check_backtrace(self, thread, filename, backtrace):
                 )
 
     def do_test(self, filename, pid, region_count):
+        # Temporary workaround for https://github.com/llvm/llvm-project/issues/159377
+        self.runCmd("settings set target.parallel-module-load false")
         target = self.dbg.CreateTarget(filename)
         process = target.LoadCore(filename + ".core")