diff --git a/benchmark/benchmark_slog_test.go b/benchmark/benchmark_slog_test.go
index 7a47b7d..4b7ef45 100644
--- a/benchmark/benchmark_slog_test.go
+++ b/benchmark/benchmark_slog_test.go
@@ -1,5 +1,4 @@
 //go:build go1.21
-// +build go1.21
 
 /*
 Copyright 2021 The logr Authors.
diff --git a/context_noslog.go b/context_noslog.go
index f012f9a..0a3d1a1 100644
--- a/context_noslog.go
+++ b/context_noslog.go
@@ -1,5 +1,4 @@
 //go:build !go1.21
-// +build !go1.21
 
 /*
 Copyright 2019 The logr Authors.
diff --git a/context_slog.go b/context_slog.go
index 065ef0b..c69eb01 100644
--- a/context_slog.go
+++ b/context_slog.go
@@ -1,5 +1,4 @@
 //go:build go1.21
-// +build go1.21
 
 /*
 Copyright 2019 The logr Authors.
diff --git a/context_slog_test.go b/context_slog_test.go
index faf1596..1b5097b 100644
--- a/context_slog_test.go
+++ b/context_slog_test.go
@@ -1,5 +1,4 @@
 //go:build go1.21
-// +build go1.21
 
 /*
 Copyright 2021 The logr Authors.
diff --git a/example_slogr_test.go b/example_slogr_test.go
index 7c370d1..3c2ceeb 100644
--- a/example_slogr_test.go
+++ b/example_slogr_test.go
@@ -1,5 +1,4 @@
 //go:build go1.21
-// +build go1.21
 
 /*
 Copyright 2023 The logr Authors.
diff --git a/examples/slog/main.go b/examples/slog/main.go
index 599d156..5d4c4fc 100644
--- a/examples/slog/main.go
+++ b/examples/slog/main.go
@@ -1,5 +1,4 @@
 //go:build go1.21
-// +build go1.21
 
 /*
 Copyright 2023 The logr Authors.
diff --git a/funcr/example/main_noslog.go b/funcr/example/main_noslog.go
index 2329882..1aaee72 100644
--- a/funcr/example/main_noslog.go
+++ b/funcr/example/main_noslog.go
@@ -1,5 +1,4 @@
 //go:build !go1.21
-// +build !go1.21
 
 /*
 Copyright 2023 The logr Authors.
diff --git a/funcr/example/main_slog.go b/funcr/example/main_slog.go
index 90f0419..98b524d 100644
--- a/funcr/example/main_slog.go
+++ b/funcr/example/main_slog.go
@@ -1,5 +1,4 @@
 //go:build go1.21
-// +build go1.21
 
 /*
 Copyright 2023 The logr Authors.
diff --git a/funcr/slogsink.go b/funcr/slogsink.go
index 7bd8476..a6f1141 100644
--- a/funcr/slogsink.go
+++ b/funcr/slogsink.go
@@ -1,5 +1,4 @@
 //go:build go1.21
-// +build go1.21
 
 /*
 Copyright 2023 The logr Authors.
diff --git a/funcr/slogsink_test.go b/funcr/slogsink_test.go
index 8fb8467..2950a09 100644
--- a/funcr/slogsink_test.go
+++ b/funcr/slogsink_test.go
@@ -1,5 +1,4 @@
 //go:build go1.21
-// +build go1.21
 
 /*
 Copyright 2021 The logr Authors.
diff --git a/internal/testhelp/slog.go b/internal/testhelp/slog.go
index dce6139..ac0219d 100644
--- a/internal/testhelp/slog.go
+++ b/internal/testhelp/slog.go
@@ -1,5 +1,4 @@
 //go:build go1.21
-// +build go1.21
 
 /*
 Copyright 2023 The logr Authors.
diff --git a/internal/testhelp/slog_test.go b/internal/testhelp/slog_test.go
index cdc7f61..1cf80d0 100644
--- a/internal/testhelp/slog_test.go
+++ b/internal/testhelp/slog_test.go
@@ -1,5 +1,4 @@
 //go:build go1.21
-// +build go1.21
 
 /*
 Copyright 2023 The logr Authors.
diff --git a/sloghandler.go b/sloghandler.go
index 82d1ba4..befaf55 100644
--- a/sloghandler.go
+++ b/sloghandler.go
@@ -1,5 +1,4 @@
 //go:build go1.21
-// +build go1.21
 
 /*
 Copyright 2023 The logr Authors.
diff --git a/slogr.go b/slogr.go
index 28a83d0..bfe80eb 100644
--- a/slogr.go
+++ b/slogr.go
@@ -1,5 +1,4 @@
 //go:build go1.21
-// +build go1.21
 
 /*
 Copyright 2023 The logr Authors.
diff --git a/slogr/slogr.go b/slogr/slogr.go
index 36432c5..933e715 100644
--- a/slogr/slogr.go
+++ b/slogr/slogr.go
@@ -1,5 +1,4 @@
 //go:build go1.21
-// +build go1.21
 
 /*
 Copyright 2023 The logr Authors.
diff --git a/slogr_test.go b/slogr_test.go
index 939a053..4239dd2 100644
--- a/slogr_test.go
+++ b/slogr_test.go
@@ -1,5 +1,4 @@
 //go:build go1.21
-// +build go1.21
 
 /*
 Copyright 2023 The logr Authors.
diff --git a/slogsink.go b/slogsink.go
index 4060fcb..ab76ea9 100644
--- a/slogsink.go
+++ b/slogsink.go
@@ -1,5 +1,4 @@
 //go:build go1.21
-// +build go1.21
 
 /*
 Copyright 2023 The logr Authors.
diff --git a/testimpls_slog_test.go b/testimpls_slog_test.go
index 5ae2690..e2a2def 100644
--- a/testimpls_slog_test.go
+++ b/testimpls_slog_test.go
@@ -1,5 +1,4 @@
 //go:build go1.21
-// +build go1.21
 
 /*
 Copyright 2023 The logr Authors.
diff --git a/testr/testr_fuzz_test.go b/testr/testr_fuzz_test.go
index ea5217d..3f660f1 100644
--- a/testr/testr_fuzz_test.go
+++ b/testr/testr_fuzz_test.go
@@ -1,5 +1,4 @@
 //go:build go1.18
-// +build go1.18
 
 /*
 Copyright 2022 The logr Authors.