diff --git a/esmerald/encoders.py b/esmerald/encoders.py
index ca628434..9c98cfdc 100644
--- a/esmerald/encoders.py
+++ b/esmerald/encoders.py
@@ -32,6 +32,10 @@ def is_type(self, value: Any) -> bool:
         """
         raise NotImplementedError("All Esmerald encoders must implement is_type() method.")
 
+    def is_type_structure(self, value: Any) -> bool:
+        """Prevent lilya picking it up for apply_structure."""
+        return False
+
     def serialize(self, obj: Any) -> Any:
         """
         Function that transforms a data structure into a serializable