diff --git a/src/Dialogs/PreferencesDialog.vala b/src/Dialogs/PreferencesDialog.vala
index ca081e591..75da2faad 100644
--- a/src/Dialogs/PreferencesDialog.vala
+++ b/src/Dialogs/PreferencesDialog.vala
@@ -19,6 +19,7 @@ public class Scratch.Dialogs.Preferences : Granite.Dialog {
     }
 
     construct {
+        resizable = false;
         var general_box = new Gtk.Box (VERTICAL, 12);
         general_box.add (new Granite.HeaderLabel (_("General")));
         general_box.add (new SettingSwitch (_("Save files when changed"), "autosave"));