diff --git a/app/gui/oven_control/multicookbook.cpp b/app/gui/oven_control/multicookbook.cpp
index 32e9828..abd4b44 100644
--- a/app/gui/oven_control/multicookbook.cpp
+++ b/app/gui/oven_control/multicookbook.cpp
@@ -1,11 +1,22 @@
 #include "multicookbook.h"
 
+#include <QErrorMessage>
+
 namespace
 {
 
-void showError(QString message)
+static QErrorMessage *errorDialog = Q_NULLPTR;
+void showError(QString errorMessage)
 {
+    if (errorDialog == NULL)
+    {
+        errorDialog = new QErrorMessage;
+        errorDialog->setWindowModality(Qt::ApplicationModal);
+        errorDialog->setGeometry(QRect(0, 426, 900, 426));
+    }
 
+    errorDialog->showMessage(errorMessage);
+    errorDialog->exec();
 }
 
 }