diff --git a/artiq/py2llvm/__init__.py b/artiq/py2llvm/__init__.py
index fefb2b9ff..e69de29bb 100644
--- a/artiq/py2llvm/__init__.py
+++ b/artiq/py2llvm/__init__.py
@@ -1,6 +0,0 @@
-from artiq.py2llvm.module import Module
-
-def get_runtime_binary(env, func_def):
-    module = Module(env)
-    module.compile_function(func_def, dict())
-    return module.emit_object()
diff --git a/artiq/py2llvm_old/__init__.py b/artiq/py2llvm_old/__init__.py
new file mode 100644
index 000000000..fefb2b9ff
--- /dev/null
+++ b/artiq/py2llvm_old/__init__.py
@@ -0,0 +1,6 @@
+from artiq.py2llvm.module import Module
+
+def get_runtime_binary(env, func_def):
+    module = Module(env)
+    module.compile_function(func_def, dict())
+    return module.emit_object()
diff --git a/artiq/py2llvm/ast_body.py b/artiq/py2llvm_old/ast_body.py
similarity index 100%
rename from artiq/py2llvm/ast_body.py
rename to artiq/py2llvm_old/ast_body.py
diff --git a/artiq/py2llvm/base_types.py b/artiq/py2llvm_old/base_types.py
similarity index 100%
rename from artiq/py2llvm/base_types.py
rename to artiq/py2llvm_old/base_types.py
diff --git a/artiq/py2llvm/fractions.py b/artiq/py2llvm_old/fractions.py
similarity index 100%
rename from artiq/py2llvm/fractions.py
rename to artiq/py2llvm_old/fractions.py
diff --git a/artiq/py2llvm/infer_types.py b/artiq/py2llvm_old/infer_types.py
similarity index 100%
rename from artiq/py2llvm/infer_types.py
rename to artiq/py2llvm_old/infer_types.py
diff --git a/artiq/py2llvm/iterators.py b/artiq/py2llvm_old/iterators.py
similarity index 100%
rename from artiq/py2llvm/iterators.py
rename to artiq/py2llvm_old/iterators.py
diff --git a/artiq/py2llvm/lists.py b/artiq/py2llvm_old/lists.py
similarity index 100%
rename from artiq/py2llvm/lists.py
rename to artiq/py2llvm_old/lists.py
diff --git a/artiq/py2llvm/module.py b/artiq/py2llvm_old/module.py
similarity index 100%
rename from artiq/py2llvm/module.py
rename to artiq/py2llvm_old/module.py
diff --git a/artiq/py2llvm/tools.py b/artiq/py2llvm_old/tools.py
similarity index 100%
rename from artiq/py2llvm/tools.py
rename to artiq/py2llvm_old/tools.py
diff --git a/artiq/py2llvm/values.py b/artiq/py2llvm_old/values.py
similarity index 100%
rename from artiq/py2llvm/values.py
rename to artiq/py2llvm_old/values.py