diff --git a/PrettyJsonListeners.py b/PrettyJsonListeners.py
index a3d91e0..e78364f 100644
--- a/PrettyJsonListeners.py
+++ b/PrettyJsonListeners.py
@@ -28,7 +28,7 @@ class PrettyJsonLintListener(sublime_plugin.EventListener, PrettyJsonBaseCommand
 
 
 class PrettyJsonAutoPrettyOnSaveListener(sublime_plugin.EventListener):
-    def on_pre_save(self, edit):
+    def on_pre_save(self, view):
         auto_pretty = s.get("pretty_on_save", False)
-        if auto_pretty:
+        if auto_pretty and "JSON" in view.settings().get('syntax'):
             sublime.active_window().run_command('pretty_json')