diff --git a/umbral/pre.py b/umbral/pre.py
index 35604ac..dfa1acf 100644
--- a/umbral/pre.py
+++ b/umbral/pre.py
@@ -63,7 +63,7 @@ class Capsule(object):
         self._attached_cfrags = list()
 
     @classmethod
-    def get_size(cls, curve: ec.EllipticCurve=None):
+    def get_size(cls, curve: ec.EllipticCurve=None, activated=False):
         """
         Returns the size (in bytes) of a Capsule given the curve.
         If no curve is provided, it will use the default curve.
@@ -72,7 +72,10 @@ class Capsule(object):
         bn_size = CurveBN.get_size(curve)
         point_size = Point.get_size(curve)
 
-        return (bn_size * 1) + (point_size * 2)
+        if not activated:
+            return (bn_size * 1) + (point_size * 2)
+        else:
+            return (bn_size * 1) + (point_size * 5)
 
     class NotValid(ValueError):
         """