diff --git a/acme/challenge_tpmsimulator_test.go b/acme/challenge_tpmsimulator_test.go
index 6f719541..06d099c0 100644
--- a/acme/challenge_tpmsimulator_test.go
+++ b/acme/challenge_tpmsimulator_test.go
@@ -1,5 +1,4 @@
 //go:build tpmsimulator
-// +build tpmsimulator
 
 package acme
 
diff --git a/authority/provisioner/acme_118_test.go b/authority/provisioner/acme_118_test.go
index e47dd3f6..e5448c10 100644
--- a/authority/provisioner/acme_118_test.go
+++ b/authority/provisioner/acme_118_test.go
@@ -1,5 +1,4 @@
 //go:build go1.18
-// +build go1.18
 
 package provisioner
 
diff --git a/authority/provisioner/acme_119_test.go b/authority/provisioner/acme_119_test.go
index 608bdd82..04fe35c1 100644
--- a/authority/provisioner/acme_119_test.go
+++ b/authority/provisioner/acme_119_test.go
@@ -1,5 +1,4 @@
 //go:build !go1.18
-// +build !go1.18
 
 package provisioner