diff --git a/ke/asm.py b/ke/asm.py
index 56f3fdd..24d2bde 100644
--- a/ke/asm.py
+++ b/ke/asm.py
@@ -225,8 +225,7 @@ def to_regex(self, flavor, capture_names, wrap=False):
                 )
         return self.maybe_wrap(wrap, rf"\{index}")
 
-    def 
-    (self):
+    def is_empty(self):
         return False