diff --git a/src/main.ui b/src/main.ui
index cf42f00..1f7d921 100644
--- a/src/main.ui
+++ b/src/main.ui
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <ui version="4.0">
- <class>mainform</class>
+ <class>MainWindow</class>
  <widget class="QWidget" name="mainform">
   <property name="geometry">
    <rect>