@@ -150,11 +150,11 @@ func (jm *JSONMessage) Display(out io.Writer, isTerminal bool) error {

 // each line and move the cursor while displaying.

 func DisplayJSONMessagesStream(in io.Reader, out io.Writer, terminalFd uintptr, isTerminal bool) error {

 	var (

-		dec  = json.NewDecoder(in)

-		ids  = make(map[string]int)

-		diff = 0

+		dec = json.NewDecoder(in)

+		ids = make(map[string]int)

 	)

 	for {

+		diff := 0

 		var jm JSONMessage

 		if err := dec.Decode(&jm); err != nil {

 			if err == io.EOF {

@@ -180,11 +180,12 @@ func DisplayJSONMessagesStream(in io.Reader, out io.Writer, terminalFd uintptr,

 				if isTerminal {

 					fmt.Fprintf(out, "\n")

 				}

-				diff = 0

 			} else {

 				diff = len(ids) - line

 			}

 			if jm.ID != "" && isTerminal {

+				// NOTE: this appears to be necessary even if

+				// diff == 0.

 				// <ESC>[{diff}A = move cursor up diff rows

 				fmt.Fprintf(out, "%c[%dA", 27, diff)

 			}

@@ -198,6 +199,8 @@ func DisplayJSONMessagesStream(in io.Reader, out io.Writer, terminalFd uintptr,

 		}

 		err := jm.Display(out, isTerminal)

 		if jm.ID != "" && isTerminal {

+			// NOTE: this appears to be necessary even if

+			// diff == 0.

 			// <ESC>[{diff}B = move cursor down diff rows

 			fmt.Fprintf(out, "%c[%dB", 27, diff)

 		}