diff --git a/cwriter/writer_posix.go b/cwriter/writer_posix.go
index 2a7995a..fd8aea0 100644
--- a/cwriter/writer_posix.go
+++ b/cwriter/writer_posix.go
@@ -4,20 +4,9 @@
 
 import (
 	"fmt"
-	"os"
 	"syscall"
 	"unsafe"
 )
-
-var tty *os.File
-
-func init() {
-	var err error
-	tty, err = os.Open("/dev/tty")
-	if err != nil {
-		tty = os.Stdin
-	}
-}
 
 func (w *Writer) clearLines() {
 	for i := 0; i < w.lineCount; i++ {
@@ -26,24 +15,13 @@
 	}
 }
 
-// TerminalWidth returns width of the terminal.
-func TerminalWidth() (int, error) {
-	w := new(window)
-	tio := syscall.TIOCGWINSZ
-	_, _, errno := syscall.Syscall(syscall.SYS_IOCTL,
-		tty.Fd(),
-		uintptr(tio),
-		uintptr(unsafe.Pointer(w)),
-	)
-	if errno != 0 {
-		return 0, errno
+// GetTermSize returns the dimensions of the given terminal.
+// the code is stolen from "golang.org/x/crypto/ssh/terminal"
+func GetTermSize() (width, height int, err error) {
+	var dimensions [4]uint16
+
+	if _, _, err := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(syscall.Stdout), uintptr(syscall.TIOCGWINSZ), uintptr(unsafe.Pointer(&dimensions)), 0, 0, 0); err != 0 {
+		return -1, -1, err
 	}
-	return int(w.Col), nil
+	return int(dimensions[1]), int(dimensions[0]), nil
 }
-
-type window struct {
-	Row    uint16
-	Col    uint16
-	Xpixel uint16
-	Ypixel uint16
-}
diff --git a/cwriter/writer_windows.go b/cwriter/writer_windows.go
index fcd0131..64a68f6 100644
--- a/cwriter/writer_windows.go
+++ b/cwriter/writer_windows.go
@@ -20,29 +20,29 @@
 	procFillConsoleOutputAttribute = kernel32.NewProc("FillConsoleOutputAttribute")
 )
 
-type short int16
-type dword uint32
-type word uint16
+type (
+	short int16
+	word  uint16
+	dword uint32
 
-type coord struct {
-	x short
-	y short
-}
-
-type smallRect struct {
-	left   short
-	top    short
-	right  short
-	bottom short
-}
-
-type consoleScreenBufferInfo struct {
-	size              coord
-	cursorPosition    coord
-	attributes        word
-	window            smallRect
-	maximumWindowSize coord
-}
+	coord struct {
+		x short
+		y short
+	}
+	smallRect struct {
+		left   short
+		top    short
+		right  short
+		bottom short
+	}
+	consoleScreenBufferInfo struct {
+		size              coord
+		cursorPosition    coord
+		attributes        word
+		window            smallRect
+		maximumWindowSize coord
+	}
+)
 
 // FdWriter is a writer with a file descriptor.
 type FdWriter interface {
@@ -54,36 +54,37 @@
 	f, ok := w.out.(FdWriter)
 	if ok && !isatty.IsTerminal(f.Fd()) {
 		for i := 0; i < w.lineCount; i++ {
-			fmt.Fprintf(w.out, "%c[%dA", ESC, 0) // move the cursor up
+			fmt.Fprintf(w.out, "%c[%dA", ESC, 1) // move the cursor up
 			fmt.Fprintf(w.out, "%c[2K\r", ESC)   // clear the line
 		}
 		return
 	}
 	fd := f.Fd()
-	var csbi consoleScreenBufferInfo
-	procGetConsoleScreenBufferInfo.Call(fd, uintptr(unsafe.Pointer(&csbi)))
+	var info consoleScreenBufferInfo
+	procGetConsoleScreenBufferInfo.Call(fd, uintptr(unsafe.Pointer(&info)))
 
 	for i := 0; i < w.lineCount; i++ {
 		// move the cursor up
-		csbi.cursorPosition.y--
-		procSetConsoleCursorPosition.Call(fd, uintptr(*(*int32)(unsafe.Pointer(&csbi.cursorPosition))))
+		info.cursorPosition.y--
+		procSetConsoleCursorPosition.Call(fd, uintptr(*(*int32)(unsafe.Pointer(&info.cursorPosition))))
 		// clear the line
 		cursor := coord{
-			x: csbi.window.left,
-			y: csbi.window.top + csbi.cursorPosition.y,
+			x: info.window.left,
+			y: info.window.top + info.cursorPosition.y,
 		}
 		var count, w dword
-		count = dword(csbi.size.x)
+		count = dword(info.size.x)
 		procFillConsoleOutputCharacter.Call(fd, uintptr(' '), uintptr(count), *(*uintptr)(unsafe.Pointer(&cursor)), uintptr(unsafe.Pointer(&w)))
 	}
 }
 
-// TerminalWidth returns width of the terminal.
-func TerminalWidth() (int, error) {
+// GetTermSize returns the dimensions of the given terminal.
+// the code is stolen from "golang.org/x/crypto/ssh/terminal"
+func GetTermSize() (width, height int, err error) {
 	var info consoleScreenBufferInfo
-	_, _, errno := syscall.Syscall(procGetConsoleScreenBufferInfo.Addr(), 2, uintptr(syscall.Stdout), uintptr(unsafe.Pointer(&info)), 0)
-	if errno != 0 {
-		return 0, errno
+	_, _, e := syscall.Syscall(procGetConsoleScreenBufferInfo.Addr(), 2, uintptr(syscall.Stdout), uintptr(unsafe.Pointer(&info)), 0)
+	if e != 0 {
+		return 0, 0, error(e)
 	}
-	return int(info.size.x) - 1, nil
+	return int(info.size.x), int(info.size.y), nil
 }
diff --git a/progress.go b/progress.go
index 788a5ca..4e3e06a 100644
--- a/progress.go
+++ b/progress.go
@@ -229,7 +229,7 @@
 				sort.Sort(SortableBarSlice(bars))
 			}
 
-			width, _ := cwriter.TerminalWidth()
+			width, _, _ := cwriter.GetTermSize()
 			ibars := iBarsGen(bars, width)
 			c := make(chan indexedBarBuffer)
 			wg.Add(numDrawers)