diff --git a/CHANGELOG.md b/CHANGELOG.md
index e105cbc088..e1a687dd2e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## master (unreleased)
 
+### Bug fixes
+
+* [#278](https://github.com/rubocop/rubocop-performance/issues/278): Fix a false positive for `Performance/StringIdentifierArgument` when using `attr`. ([@koic][])
+
 ## 1.13.0 (2021-12-25)
 
 ### New features
diff --git a/changelog/fix_false_positive_for_performance_string_identifier_argument.md b/changelog/fix_false_positive_for_performance_string_identifier_argument.md
deleted file mode 100644
index 6d3eae59d4..0000000000
--- a/changelog/fix_false_positive_for_performance_string_identifier_argument.md
+++ /dev/null
@@ -1 +0,0 @@
-* [#278](https://github.com/rubocop/rubocop-performance/issues/278): Fix a false positive for `Performance/StringIdentifierArgument` when using `attr`. ([@koic][])