diff --git a/command/ca/acme/eab/sigchild.go b/command/ca/acme/eab/sigchild.go
index 7f0e5715..f2e55f12 100644
--- a/command/ca/acme/eab/sigchild.go
+++ b/command/ca/acme/eab/sigchild.go
@@ -1,5 +1,4 @@
 //go:build !windows
-// +build !windows
 
 package eab
 
diff --git a/command/ca/acme/eab/sigchild_windows.go b/command/ca/acme/eab/sigchild_windows.go
index 4398a249..7c2edccc 100644
--- a/command/ca/acme/eab/sigchild_windows.go
+++ b/command/ca/acme/eab/sigchild_windows.go
@@ -1,5 +1,4 @@
 //go:build windows
-// +build windows
 
 package eab
 
diff --git a/internal/sshutil/agent_unix.go b/internal/sshutil/agent_unix.go
index 07aa4350..5675f2c1 100644
--- a/internal/sshutil/agent_unix.go
+++ b/internal/sshutil/agent_unix.go
@@ -1,5 +1,4 @@
 //go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris
-// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
 
 package sshutil
 
diff --git a/utils/sysutils/sysutils_unix.go b/utils/sysutils/sysutils_unix.go
index b462d76e..00e3de96 100644
--- a/utils/sysutils/sysutils_unix.go
+++ b/utils/sysutils/sysutils_unix.go
@@ -1,5 +1,4 @@
 //go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris
-// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
 
 package sysutils