diff --git a/Tests/Succeed/Test193.ML b/Tests/Succeed/Test193.ML
new file mode 100644
index 00000000..89c8ee8c
--- /dev/null
+++ b/Tests/Succeed/Test193.ML
@@ -0,0 +1,34 @@
+(* Unix socket test - Test078 converted to Unix socket *)
+case #lookupStruct (PolyML.globalNameSpace) "UnixSock" of
+    SOME _ => ()
+|   NONE => raise NotApplicable;
+
+val x = UnixSock.Strm.socket(): Socket.passive UnixSock.stream_sock
+and y = UnixSock.Strm.socket(): Socket.active UnixSock.stream_sock;
+
+val name = OS.FileSys.tmpName();
+OS.FileSys.remove name handle OS.SysErr _ => ();
+
+Socket.bind(x, UnixSock.toAddr name);
+Socket.listen(x, 5);
+
+Socket.connect(y, UnixSock.toAddr name);
+
+val (cnct, _) = Socket.accept x;
+
+(* Send the data. Use a separate thread so there's no possibility of blocking. *)
+let
+    fun sendData() =
+        (Socket.sendVec(y, Word8VectorSlice.full(Byte.stringToBytes "A test")); ())
+in
+    Thread.Thread.fork(sendData, [])
+end;
+
+if Byte.bytesToString(Socket.recvVec(cnct, 6)) <> "A test"
+then raise Fail "failed"
+else ();
+
+Socket.close cnct;
+Socket.close x;
+Socket.close y;
+OS.FileSys.remove name handle OS.SysErr _ => ();