diff --git a/redo/common_windows.go b/redo/common_windows.go
index 3ec4ddd..65eb781 100644
--- a/redo/common_windows.go
+++ b/redo/common_windows.go
@@ -44,3 +44,14 @@ func getWindowText(hwnd C.HWND) string {
 		C.LPWSTR(unsafe.Pointer(&buf[0])))
 	return syscall.UTF16ToString(buf)
 }
+
+func wstrToString(wstr *C.WCHAR) string {
+	n := C.wcslen((*C.wchar_t)(unsafe.Pointer(wstr)))
+	xbuf := &reflect.SliceHeader{
+		Data:	uintptr(unsafe.Pointer(wstr)),
+		Len:		int(n + 1),
+		Cap:		int(n + 1),
+	}
+	buf := (*[]uint16)(unsafe.Pointer(xbuf))
+	return syscall.UTF16ToString(*buf)
+}
diff --git a/redo/dialog_windows.go b/redo/dialog_windows.go
index 0346f56..1ca7771 100644
--- a/redo/dialog_windows.go
+++ b/redo/dialog_windows.go
@@ -11,18 +11,6 @@ import (
 // #include "winapi_windows.h"
 import "C"
 
-// TODO move to common_windows.go
-func wstrToString(wstr *C.WCHAR) string {
-	n := C.wcslen((*C.wchar_t)(unsafe.Pointer(wstr)))
-	xbuf := &reflect.SliceHeader{
-		Data:	uintptr(unsafe.Pointer(wstr)),
-		Len:		int(n + 1),
-		Cap:		int(n + 1),
-	}
-	buf := (*[]uint16)(unsafe.Pointer(xbuf))
-	return syscall.UTF16ToString(*buf)
-}
-
 func openFile() string {
 	name := C.openFile()
 	if name == nil {