diff --git a/artiq/compiler/tools.py b/artiq/compiler/tools.py
index 8cecd5580..867affcbb 100644
--- a/artiq/compiler/tools.py
+++ b/artiq/compiler/tools.py
@@ -25,8 +25,8 @@ def value_to_ast(value):
 		return None
 
 def make_stmt_transformer(transformer_class):
-	def stmt_transformer(stmts):
-		transformer = transformer_class()
+	def stmt_transformer(stmts, *args, **kwargs):
+		transformer = transformer_class(*args, **kwargs)
 		new_stmts = [transformer.visit(stmt) for stmt in stmts]
 		stmts[:] = new_stmts
 	return stmt_transformer