diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1327de57b..a2ff8773b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,7 @@ All notable changes to this library are documented in this file.
 ## [6.x.x] - 16.12.2024
 - Refactoring of the InnerSum methods: 
   - `rlwe.Evaluator.InnerSum` has been replaced by `rlwe.Evaluator.PartialTrace`
-  - Introduction of the `bgv.Evaluator.InnerSum` and `ckks.Evaluator.InnerSum` methods, which have the same behaviour as the old `InnerSum` method for parameters `n` and `batchSize` s.t. `n*batchSize` divides the number of slots. Parameters not satisfying this condition are rejected.
+  - Introduction of the `bgv.Evaluator.InnerSum` and `ckks.Evaluator.InnerSum` methods, which have the same behaviour as the old `InnerSum` method for parameters `n` and `batchSize` s.t. `0 < n*batchSize <= ctIn.Slots()` divides the number of slots. Parameters not satisfying these conditions are rejected.
   - Introduction of the `bgv.Evaluator.RotateAndAdd` and `ckks.Evaluator.RotateAndAdd` methods, which have the same behaviour as the old `InnerSum` method for all parameters. 
 
 ## [6.1.0] - 04.10.2024