diff --git a/Cython/Compiler/Options.py b/Cython/Compiler/Options.py
index b15c32d2137..07aca2e0281 100644
--- a/Cython/Compiler/Options.py
+++ b/Cython/Compiler/Options.py
@@ -409,6 +409,7 @@ class DEFER_ANALYSIS_OF_ARGUMENTS:
     'legacy_implicit_noexcept': ('module', ),
     'control_flow.dot_output': ('module',),
     'control_flow.dot_annotate_defs': ('module',),
+    'freethreading_compatible': ('module',)
 }