diff --git a/pysetup/spec_builders/deneb.py b/pysetup/spec_builders/deneb.py
index e1ad05184..dc3c17583 100644
--- a/pysetup/spec_builders/deneb.py
+++ b/pysetup/spec_builders/deneb.py
@@ -17,6 +17,7 @@ from eth2spec.capella import {preset_name} as capella
     def preparations(cls):
         return '''
 T = TypeVar('T')  # For generic function
+TPoint = TypeVar('TPoint')  # For generic function. G1 or G2 point.
 '''
 
     @classmethod
diff --git a/specs/deneb/polynomial-commitments.md b/specs/deneb/polynomial-commitments.md
index a740ca7ef..5f7edb455 100644
--- a/specs/deneb/polynomial-commitments.md
+++ b/specs/deneb/polynomial-commitments.md
@@ -153,8 +153,8 @@ def bit_reversal_permutation(sequence: Sequence[T]) -> Sequence[T]:
 This function performs a multi-scalar multiplication between `points` and `integers`. `points` can either be in G1 or G2.
 
 ```python
-def multi_exp(points: PyUnion[Sequence[G1Point], Sequence[G2Point]],
-              integers: Sequence[uint64]) -> PyUnion[Sequence[G1Point], Sequence[G2Point]]:
+def multi_exp(points: Sequence[TPoint],
+              integers: Sequence[uint64]) -> Sequence[TPoint]:
     # pylint: disable=unused-argument
     ...
 ```