diff --git a/cmake/make_cmakelists.py b/cmake/make_cmakelists.py
index dea43974ed..341f095c2b 100755
--- a/cmake/make_cmakelists.py
+++ b/cmake/make_cmakelists.py
@@ -223,6 +223,9 @@ class WorkspaceFileFunctions(object):
   def system_python(self, **kwargs):
     pass
 
+  def register_toolchains(self, toolchain):
+    pass
+
 
 class Converter(object):
   def __init__(self):