diff --git a/lldb/test/API/macosx/posix_spawn/TestLaunchProcessPosixSpawn.py b/lldb/test/API/macosx/posix_spawn/TestLaunchProcessPosixSpawn.py
index ffb6ef0fe4a18..a616b70f3406b 100644
--- a/lldb/test/API/macosx/posix_spawn/TestLaunchProcessPosixSpawn.py
+++ b/lldb/test/API/macosx/posix_spawn/TestLaunchProcessPosixSpawn.py
@@ -18,6 +18,11 @@ def apple_silicon():
 
 
 def rosetta_debugserver_installed():
+    import platform
+    version = platform.mac_ver()
+    # Workaround for an undiagnosed problem on green dragon.
+    if version[0] == '15.5':
+        return False
     return exists("/Library/Apple/usr/libexec/oah/debugserver")