diff --git a/src/internal/bytealg/index_generic.go b/src/internal/bytealg/index_generic.go
index 287bdba4c680a1..0a6eb90d2d9297 100644
--- a/src/internal/bytealg/index_generic.go
+++ b/src/internal/bytealg/index_generic.go
@@ -2,7 +2,6 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// go:build !amd64 && !arm64 && !s390x && !ppc64le && !ppc64
 //go:build !amd64 && !arm64 && !s390x && !ppc64le && !ppc64
 // +build !amd64,!arm64,!s390x,!ppc64le,!ppc64
 
diff --git a/src/internal/bytealg/index_native.go b/src/internal/bytealg/index_native.go
index 75aff4b3cb0169..9547a5d8e2aa39 100644
--- a/src/internal/bytealg/index_native.go
+++ b/src/internal/bytealg/index_native.go
@@ -2,7 +2,6 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// go:build amd64 || arm64 || s390x || ppc64le || ppc64
 //go:build amd64 || arm64 || s390x || ppc64le || ppc64
 // +build amd64 arm64 s390x ppc64le ppc64