diff --git a/files/ZAZLaTex2SVG_v0.1.0.oxt b/files/ZAZLaTex2SVG_v0.1.0.oxt
index cde03fd..01b626d 100644
Binary files a/files/ZAZLaTex2SVG_v0.1.0.oxt and b/files/ZAZLaTex2SVG_v0.1.0.oxt differ
diff --git a/source/ZAZLaTex2SVG.py b/source/ZAZLaTex2SVG.py
index a9f172b..c22f4e1 100644
--- a/source/ZAZLaTex2SVG.py
+++ b/source/ZAZLaTex2SVG.py
@@ -46,6 +46,12 @@ class Controllers(object):
         return
 
     def cmd_insert_action(self, event):
+        data = self.d.text.value
+        if not data:
+            msg = _('Write some code')
+            app.errorbox(msg)
+            return
+
         msg = _('You shure insert this equation')
         if not app.question(msg):
             return