diff --git a/cmd/grpcurl/grpcurl.go b/cmd/grpcurl/grpcurl.go
index a3fcba1..aaead29 100644
--- a/cmd/grpcurl/grpcurl.go
+++ b/cmd/grpcurl/grpcurl.go
@@ -45,8 +45,6 @@ var version = noVersion
 var (
 	exit = os.Exit
 
-	isUnixSocket func() bool // nil when run on non-unix platform
-
 	flags = flag.NewFlagSet(os.Args[0], flag.ExitOnError)
 
 	help = flags.Bool("help", false, prettify(`
@@ -363,9 +361,6 @@ func main() {
 	if *format != "json" && *format != "text" {
 		fail(nil, "The -format option must be 'json' or 'text'.")
 	}
-	if isUnixSocket != nil && isUnixSocket() {
-		fail(nil, "The -unix option is deprecated, please use unix://{path} as the address instead.")
-	}
 	if *emitDefaults && *format != "json" {
 		warn("The -emit-defaults is only used when using json format.")
 	}
diff --git a/cmd/grpcurl/unix.go b/cmd/grpcurl/unix.go
deleted file mode 100644
index cae4bed..0000000
--- a/cmd/grpcurl/unix.go
+++ /dev/null
@@ -1,15 +0,0 @@
-//go:build darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || windows
-// +build darwin dragonfly freebsd linux netbsd openbsd solaris windows
-
-package main
-
-var (
-	unix = flags.Bool("unix", false, prettify(`
-		Indicates that the server address is the path to a Unix domain socket.`))
-)
-
-func init() {
-	isUnixSocket = func() bool {
-		return *unix
-	}
-}