diff --git a/src/Buffer.cpp b/src/Buffer.cpp
index 5df91ec853..2f06f18e37 100644
--- a/src/Buffer.cpp
+++ b/src/Buffer.cpp
@@ -1321,7 +1321,7 @@ Buffer::ReadStatus Buffer::convertLyXFormat(FileName const & fn,
 FileName Buffer::getBackupName() const {
 	FileName const & fn = fileName();
 	string const fname = fn.onlyFileNameWithoutExt();
-	string const fext  = fn.extension();
+	string const fext  = fn.extension() + "~";
 	string const fpath = lyxrc.backupdir_path.empty() ?
 		fn.onlyPath().absFileName() :
 		lyxrc.backupdir_path;
diff --git a/status.22x b/status.22x
index acae4f6b17..de0029f59c 100644
--- a/status.22x
+++ b/status.22x
@@ -38,6 +38,8 @@ What's new
 
 - Do not hardcode required packages for Note inset.
 
+- Make *-lyxformat-* backup files use .lyx~ extension.
+
 
 * LYX2LYX