diff --git a/src/qchartglobal.h b/src/qchartglobal.h
index 3216bcc..e5144eb 100644
--- a/src/qchartglobal.h
+++ b/src/qchartglobal.h
@@ -21,8 +21,17 @@
 #ifndef QCHARTGLOBAL_H
 #define QCHARTGLOBAL_H
 
-#define QTCOMMERCIALCHART_VERSION_STR   "1.0"
-#define QTCOMMERCIALCHART_VERSION 0x01
+#include <qglobal.h>
+
+#define QTCOMMERCIALCHART_VERSION_STR   "1.2.0"
+/*
+   QTCOMMERCIALCHART_VERSION is (major << 16) + (minor << 8) + patch.
+*/
+#define QTCOMMERCIALCHART_VERSION       0x010200
+/*
+   can be used like #if (QTCOMMERCIALCHART_VERSION >= QTCOMMERCIALCHART_VERSION_CHECK(1, 1, 0))
+*/
+#define QTCOMMERCIALCHART_VERSION_CHECK(major, minor, patch) ((major<<16)|(minor<<8)|(patch))
 
 #if defined(QTCOMMERCIALCHART_LIBRARY)
 #  define QTCOMMERCIALCHART_EXPORT Q_DECL_EXPORT