diff --git a/docs/dev/clang-tidy-fixes-2026-04.md b/docs/dev/clang-tidy-fixes-2026-04.md
index 7354793c..59767f23 100644
--- a/docs/dev/clang-tidy-fixes-2026-04.md
+++ b/docs/dev/clang-tidy-fixes-2026-04.md
@@ -118,7 +118,8 @@
 - [ ] [performance-no-automatic-move](https://clang.llvm.org/extra/clang-tidy/checks/performance/no-automatic-move.html) (1)
 - [x] [performance-no-int-to-ptr](https://clang.llvm.org/extra/clang-tidy/checks/performance/no-int-to-ptr.html) (15)
   - [PR #564](https://github.com/Framework-R-D/phlex/pull/564)
-- [ ] [performance-type-promotion-in-math-fn](https://clang.llvm.org/extra/clang-tidy/checks/performance/type-promotion-in-math-fn.html) (2)
+- [x] [performance-type-promotion-in-math-fn](https://clang.llvm.org/extra/clang-tidy/checks/performance/type-promotion-in-math-fn.html) (2)
+  - Resolved incidentally by [PR #551](https://github.com/Framework-R-D/phlex/pull/551)
 - [ ] [performance-unnecessary-copy-initialization](https://clang.llvm.org/extra/clang-tidy/checks/performance/unnecessary-copy-initialization.html) (1)
 - [ ] [performance-unnecessary-value-param](https://clang.llvm.org/extra/clang-tidy/checks/performance/unnecessary-value-param.html) (44)
 - [ ] [portability-template-virtual-member-function](https://clang.llvm.org/extra/clang-tidy/checks/portability/template-virtual-member-function.html) (2)