diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -5,6 +5,7 @@
 - `--protocol http --port 8000` TCP sockets
 - `--protocol unix --socket /var/run/app/sock` UNIX domain sockets
 - `--protocol cgi` running as a CGI app (the original serverless lambda functions from the 90s)
+- `--protocol fastcgi` running as a FastCGI app (OPTIONAL! You need to build with the `fastcgi` cabal flag and you need to have `libfcgi` (e.g. `fcgi-devkit` package on FreeBSD) installed)
 - `--protocol activate` socket activation (systemd-compatible, but not restricted to systemd in any way. see [soad](https://github.com/myfreeweb/soad) for an interesting use of (de)activation!)
 - `--protocol (http+tls|unix+tls|activate+tls) --tlskey key.pem --tlscert cert.pem` TLS (can be turned off with a cabal flag to avoid compiling [the TLS library](https://github.com/vincenthz/hs-tls))
 - `--graceful (none|serve-normally|serve-503)` graceful shutdown (on TERM signal)
diff --git a/library/Network/Wai/Cli.hs b/library/Network/Wai/Cli.hs
--- a/library/Network/Wai/Cli.hs
+++ b/library/Network/Wai/Cli.hs
@@ -2,7 +2,6 @@
 
 module Network.Wai.Cli where
 
-import           Network.Wai (responseLBS, Application)
 import qualified Network.Wai.Handler.CGI as CGI
 import           Network.Wai.Handler.Warp hiding (run)
 #ifdef WaiCliTLS
@@ -12,17 +11,24 @@
 import qualified Network.Wai.Handler.FastCGI as FCGI
 #endif
 import           Network.Wai.Middleware.RequestLogger (logStdoutDev)
+#ifdef WaiCliUnix
+import           Network.Wai (responseLBS, Application)
 import           Network.HTTP.Types (serviceUnavailable503)
 import           Network.Socket.Activation
-import qualified Network.Socket as S
-import           GHC.Conc (getNumCapabilities, forkIO)
 import           System.Posix.Internals (setNonBlockingFD)
 import           System.Posix.Signals (installHandler, sigTERM, Handler(CatchOnce))
 import           Data.Streaming.Network (bindPath, bindPortTCP)
-import           System.Console.ANSI
-import           Control.Concurrent.STM
 import           Control.Monad
 import           Control.Monad.Trans (liftIO)
+import           Control.Concurrent.STM
+import           GHC.Conc (getNumCapabilities, forkIO)
+#else
+import           Network.Wai (Application)
+import           Data.Streaming.Network (bindPortTCP)
+import           GHC.Conc (getNumCapabilities)
+#endif
+import qualified Network.Socket as S
+import           System.Console.ANSI
 import           Control.Exception (bracket)
 import           Options
 import           Data.List (intercalate)
@@ -34,45 +40,54 @@
 data WaiOptions = WaiOptions
   { wHttpPort                ∷ Int
   , wHttpHost                ∷ String
+#ifdef WaiCliUnix
   , wUnixSock                ∷ String
+#endif
   , wProtocol                ∷ String
 #ifdef WaiCliTLS
   , wTlsKeyFile              ∷ String
   , wTlsCertFile             ∷ String
 #endif
+#ifdef WaiCliUnix
   , wGracefulMode            ∷ String
+#endif
   , wDevlogging              ∷ Maybe Bool }
 
 instance Options WaiOptions where
   defineOptions = pure WaiOptions
     <*> simpleOption "port"              3000                "The port the app should listen for connections on (for http)"
     <*> simpleOption "host"              "*4"                "Host preference (for http)"
+#ifdef WaiCliUnix
     <*> simpleOption "socket"            "wai.sock"          "The UNIX domain socket path the app should listen for connections on (for unix)"
+#endif
     <*> simpleOption "protocol"          "http"              ("The protocol for the server. One of: " ++ availableProtocols)
 #ifdef WaiCliTLS
     <*> simpleOption "tlskey"            ""                  "Path to the TLS private key file for +tls protocols"
     <*> simpleOption "tlscert"           ""                  "Path to the TLS certificate bundle file for +tls protocols"
 #endif
+#ifdef WaiCliUnix
     <*> simpleOption "graceful"          "serve-normally"    "Graceful shutdown mode. One of: none, serve-normally, serve-503"
+#endif
     <*> simpleOption "devlogging"        Nothing             "Whether development logging should be enabled"
     where
-      availableProtocols = intercalate ", " $ concat
-        [coreProtocols, tlsProtocols, fcgiProtocol]
-      coreProtocols = ["http", "unix", "activate", "cgi"]
-      tlsProtocols =
+      availableProtocols = intercalate ", " [
+          "http", "cgi"
+#ifdef WaiCliUnix
+        , "unix", "activate"
+#endif
 #ifdef WaiCliTLS
-        ["http+tls", "unix+tls", "activate+tls"]
-#else
-        []
+        , "http+tls"
 #endif
-      fcgiProtocol =
+#if defined(WaiCliTLS) && defined(WaiCliUnix)
+        , "unix+tls", "activate+tls"
+#endif
 #ifdef WaiCliFastCGI
-        ["fastcgi"]
-#else
-        []
+        , "fastcgi"
 #endif
+        ]
 
 
+#ifdef WaiCliUnix
 runActivated ∷ (Settings → S.Socket → Application → IO ()) → Settings → Application → IO ()
 runActivated run warps app = do
   sockets ← getActivatedSockets
@@ -83,6 +98,7 @@
         forkIO $ run warps sock app
     Nothing → putStrLn "No sockets to activate"
 
+
 runGraceful ∷ GracefulMode → (Settings → Application → IO ()) → Settings → Application → IO ()
 runGraceful mode run warps app = do
   -- based on https://gist.github.com/NathanHowell/5435345
@@ -102,6 +118,7 @@
     takeTMVar shutdown
     conns ← readTVar activeConnections
     when (conns /= 0) retry
+#endif
 
 -- | Adjusts 'WaiOptions' with an address assigned to a newly created
 -- server socket, uses those to set a "before main loop" function in
@@ -142,20 +159,28 @@
      _ → do
        let run = case wProtocol opts of
              "http" → runWarp putListening opts runSettingsSocket
+#ifdef WaiCliUnix
              "unix" → \warps' app'' → bracket (bindPath $ wUnixSock opts) S.close (\sock → runSettingsSocket warps' sock app'')
              "activate" → runActivated runSettingsSocket
+#endif
 #ifdef WaiCliTLS
              "http+tls" → runWarp putListening opts (runTLSSocket tlss)
+#ifdef WaiCliUnix
              "unix+tls" → \warps' app'' → bracket (bindPath $ wUnixSock opts) S.close (\sock → runTLSSocket tlss warps' sock app'')
              "activate+tls" → runActivated (runTLSSocket tlss)
 #endif
+#endif
              x → \_ _ → putStrLn $ "Unsupported protocol: " ++ x
        putWelcome opts
+#ifdef WaiCliUnix
        case wGracefulMode opts of
              "none" → run warps app'
              "serve-normally" → runGraceful ServeNormally run warps app'
              "serve-503" → runGraceful Serve503 run warps app'
              x  → putStrLn $ "Unsupported graceful mode: " ++ x
+#else
+       run warps app'
+#endif
 
 defPutListening ∷ WaiOptions → IO ()
 defPutListening opts = getNumCapabilities >>= putMain
@@ -163,12 +188,16 @@
         putProto = case wProtocol opts of
                      "http" → reset " host " >> boldMagenta (wHttpHost opts)
                               >> reset ", port " >> boldMagenta (show $ wHttpPort opts)
+#ifdef WaiCliUnix
                      "unix" → reset " socket " >> boldMagenta (show $ wUnixSock opts)
                      "activate" → reset " activated socket"
+#endif
 #ifdef WaiCliTLS
                      "http+tls" → reset " (TLS) port "   >> boldMagenta (show $ wHttpPort opts)
+#ifdef WaiCliUnix
                      "unix+tls" → reset " (TLS) socket " >> boldMagenta (show $ wUnixSock opts)
                      "activate+tls" → reset " (TLS) activated socket"
+#endif
 #endif
                      _      → setReset
         setReset = setSGR [ Reset ]
diff --git a/wai-cli.cabal b/wai-cli.cabal
--- a/wai-cli.cabal
+++ b/wai-cli.cabal
@@ -1,5 +1,5 @@
 name:            wai-cli
-version:         0.2.0
+version:         0.2.1
 synopsis:        Command line runner for Wai apps (using Warp) with TLS, CGI, socket activation & graceful shutdown
 description:
     Command line runner for Wai apps (using Warp) with support for UNIX domain sockets,
@@ -32,17 +32,19 @@
     description: Include wai-handler-fastcgi
     default: False
 
+flag unixsockets
+    description: Enable Unix sockets
+    default: True
+
 library
     build-depends:
         base >= 4.8.0.0 && < 5
       , options
       , warp
-      , socket-activation
       , streaming-commons
       , http-types
       , monads-tf
       , stm
-      , unix
       , network >= 2.7
       , wai
       , wai-extra
@@ -59,3 +61,9 @@
     if flag(fastcgi)
         build-depends: wai-handler-fastcgi
         cpp-options: -DWaiCliFastCGI
+    if !os(windows) && flag(unixsockets)
+        cpp-options: -DWaiCliUnix
+        build-depends:
+            unix
+            , socket-activation
+