diff --git a/app/gui/oven_control/cookbook.cpp b/app/gui/oven_control/cookbook.cpp
index 901b2e2..80f1b79 100644
--- a/app/gui/oven_control/cookbook.cpp
+++ b/app/gui/oven_control/cookbook.cpp
@@ -101,7 +101,7 @@ CookBook::CookBook(Define::CookType type)
             continue;
         }
 
-        cookname.replace("\\r", "\n");
+        cookname.replace("\\n", "\n");
 
         list.append(cookname);
         book.append(ListEntity { directory, cookname });
diff --git a/app/gui/oven_control/define.h b/app/gui/oven_control/define.h
index 32d50c5..80e6002 100644
--- a/app/gui/oven_control/define.h
+++ b/app/gui/oven_control/define.h
@@ -5,7 +5,7 @@
 
 #define MAJOR_VER  1
 #define MINOR_VER   0
-#define HOTFIX_VER  3
+#define HOTFIX_VER  4
 
 namespace Define
 {
diff --git a/app/gui/oven_control/manualviewerdlg.cpp b/app/gui/oven_control/manualviewerdlg.cpp
index 556bc86..181a573 100644
--- a/app/gui/oven_control/manualviewerdlg.cpp
+++ b/app/gui/oven_control/manualviewerdlg.cpp
@@ -28,5 +28,5 @@ ManualViewerDlg::~ManualViewerDlg()
 
 void ManualViewerDlg::on_backButton_clicked()
 {
-
+    deleteLater();
 }
diff --git a/app/gui/oven_control/manualviewerdlg.ui b/app/gui/oven_control/manualviewerdlg.ui
index 1b8720c..349a120 100644
--- a/app/gui/oven_control/manualviewerdlg.ui
+++ b/app/gui/oven_control/manualviewerdlg.ui
@@ -128,29 +128,6 @@ QPushButton:pressed, QPushButton:focus{ border-image: url(:/images/bottom_bar/ba
       <string/>
      </property>
     </widget>
-    <widget class="QPushButton" name="helpButton">
-     <property name="geometry">
-      <rect>
-       <x>457</x>
-       <y>26</y>
-       <width>97</width>
-       <height>97</height>
-      </rect>
-     </property>
-     <property name="sizePolicy">
-      <sizepolicy hsizetype="Minimum" vsizetype="Minimum">
-       <horstretch>0</horstretch>
-       <verstretch>0</verstretch>
-      </sizepolicy>
-     </property>
-     <property name="styleSheet">
-      <string notr="true">QPushButton { border-image: url(:/images/bottom_bar/help.png); }
-QPushButton:pressed, QPushButton:focus { border-image: url(:/images/bottom_bar/help_ov.png); }</string>
-     </property>
-     <property name="text">
-      <string/>
-     </property>
-    </widget>
    </widget>
    <widget class="QLabel" name="ctrLbManual">
     <property name="geometry">