diff --git a/.credo.exs b/.credo.exs
index 9f69aecd10..ba4d7feb49 100644
--- a/.credo.exs
+++ b/.credo.exs
@@ -89,7 +89,7 @@
         # or the `schema` macro in Ecto schemas to trigger DuplicatedCode, just
         # set the `excluded_macros` parameter to `[:schema, :setup, :test]`.
         #
-        {Credo.Check.Design.DuplicatedCode, false},
+        {Credo.Check.Design.DuplicatedCode, excluded_macros: [], mass_threshold: 80},
 
         # You can also customize the exit_status of each check.
         # If you don't want TODO comments to cause `mix credo` to fail, just
diff --git a/CHANGELOG.md b/CHANGELOG.md
index cefb2622a1..62d1cc05b7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,12 +16,13 @@
 
 ### Chore
 - [#2492](https://github.com/poanetwork/blockscout/pull/2492) - hide decoded row if event is not decoded
-- [#2402](https://github.com/poanetwork/blockscout/pull/2402) - bump otp version to 22.0
+- [#2490](https://github.com/poanetwork/blockscout/pull/2490) - enable credo duplicated code check
 - [#2432](https://github.com/poanetwork/blockscout/pull/2432) - bump credo version
 - [#2457](https://github.com/poanetwork/blockscout/pull/2457) - update mix.lock
 - [#2435](https://github.com/poanetwork/blockscout/pull/2435) - Replace deprecated extract-text-webpack-plugin with mini-css-extract-plugin
 - [#2450](https://github.com/poanetwork/blockscout/pull/2450) - Fix clearance of logs and node_modules folders in clearing script
 - [#2434](https://github.com/poanetwork/blockscout/pull/2434) - get rid of timex warnings
+- [#2402](https://github.com/poanetwork/blockscout/pull/2402) - bump otp version to 22.0
 
 ## 2.0.2-beta