diff --git a/lib/ex.coffee b/lib/ex.coffee
index b221a3b..7c9a6fa 100644
--- a/lib/ex.coffee
+++ b/lib/ex.coffee
@@ -227,7 +227,7 @@ class Ex
     if not saved and fullPath?
       if not force and fs.existsSync(fullPath)
         throw new CommandError("File exists (add ! to override)")
-      if saveas
+      if saveas or editor.getFileName() == null
         editor = atom.workspace.getActiveTextEditor()
         trySave(-> editor.saveAs(fullPath, editor)).then(deferred.resolve)
       else
diff --git a/spec/ex-commands-spec.coffee b/spec/ex-commands-spec.coffee
index 08237e3..1b1178e 100644
--- a/spec/ex-commands-spec.coffee
+++ b/spec/ex-commands-spec.coffee
@@ -79,6 +79,7 @@ describe "the commands", ->
         submitNormalModeInputText('write')
         expect(fs.existsSync(filePath)).toBe(true)
         expect(fs.readFileSync(filePath, 'utf-8')).toEqual('abc\ndef')
+        expect(editor.isModified()).toBe(false)
 
       it "saves when a path is specified in the save dialog", ->
         spyOn(atom, 'showSaveDialogSync').andReturn(undefined)