Index: src/syscall/exec_unix.go
--- src/syscall/exec_unix.go.orig
+++ src/syscall/exec_unix.go
@@ -293,7 +293,7 @@ func Exec(argv0 string, argv []string, envv []string) 
 	} else if runtime.GOOS == "darwin" || runtime.GOOS == "ios" {
 		// Similarly on Darwin.
 		err1 = execveDarwin(argv0p, &argvp[0], &envvp[0])
-	} else if runtime.GOOS == "openbsd" && (runtime.GOARCH == "386" || runtime.GOARCH == "amd64" || runtime.GOARCH == "arm" || runtime.GOARCH == "arm64") {
+	} else if runtime.GOOS == "openbsd" {
 		// Similarly on OpenBSD.
 		err1 = execveOpenBSD(argv0p, &argvp[0], &envvp[0])
 	} else {