diff --git a/AppVersion.h.in b/AppVersion.h.in
index baf7929..bdd7d6a 100644
--- a/AppVersion.h.in
+++ b/AppVersion.h.in
@@ -7,4 +7,5 @@
 #define GUI_VERSION_MAJOR @GUI_VERSION_MAJOR@
 #define GUI_VERSION_MINOR @GUI_VERSION_MINOR@
 #define GUI_VERSION_BUILD @GUI_VERSION_BUILD@
+#define GUI_VERSION_BETA @GUI_VERSION_BETA@
 #endif //GUI_VERSION_H
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8e8030c..94a8854 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -9,6 +9,7 @@ set(CMAKE_INCLUDE_CURRENT_DIR ON)
 set(GUI_VERSION_MAJOR 0)
 set(GUI_VERSION_MINOR 6)
 set(GUI_VERSION_BUILD 9)
+set(GUI_VERSION_BETA 1)
 # use AppVersion.h as a configure file
 configure_file(
         "AppVersion.h.in"
diff --git a/src/aboutwidget.cpp b/src/aboutwidget.cpp
index 1646e02..e3e23f3 100644
--- a/src/aboutwidget.cpp
+++ b/src/aboutwidget.cpp
@@ -181,6 +181,10 @@ void AboutWidget::openHelpFile()
 }
 
 QString AboutWidget::getGUIVersion() {
+
+    if (GUI_VERSION_BETA){
+        return QString("%1.%2.%3 beta").arg(GUI_VERSION_MAJOR).arg(GUI_VERSION_MINOR).arg(GUI_VERSION_BUILD);
+    }
     return QString("%1.%2.%3").arg(GUI_VERSION_MAJOR).arg(GUI_VERSION_MINOR).arg(GUI_VERSION_BUILD);
 }