diff --git a/internal/fakecgo/go_libinit.go b/internal/fakecgo/go_libinit.go
index 0c463066..310725bd 100644
--- a/internal/fakecgo/go_libinit.go
+++ b/internal/fakecgo/go_libinit.go
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: Apache-2.0
 // SPDX-FileCopyrightText: 2022 The Ebitengine Authors
 
-//go:build !cgo && (darwin || freebsd || linux || netbsd)
+//go:build !cgo && (darwin || linux || ((freebsd || netbsd) && (amd64 || arm64)))
 
 package fakecgo
 
diff --git a/internal/fakecgo/go_setenv.go b/internal/fakecgo/go_setenv.go
index dfc6629e..45e8e818 100644
--- a/internal/fakecgo/go_setenv.go
+++ b/internal/fakecgo/go_setenv.go
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: Apache-2.0
 // SPDX-FileCopyrightText: 2022 The Ebitengine Authors
 
-//go:build !cgo && (darwin || freebsd || linux || netbsd)
+//go:build !cgo && (darwin || linux || ((freebsd || netbsd) && (amd64 || arm64)))
 
 package fakecgo
 
diff --git a/internal/fakecgo/go_util.go b/internal/fakecgo/go_util.go
index ee993baa..0a0438bb 100644
--- a/internal/fakecgo/go_util.go
+++ b/internal/fakecgo/go_util.go
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: Apache-2.0
 // SPDX-FileCopyrightText: 2022 The Ebitengine Authors
 
-//go:build !cgo && (darwin || freebsd || linux || netbsd)
+//go:build !cgo && (darwin || linux || ((freebsd || netbsd) && (amd64 || arm64)))
 
 package fakecgo