diff --git a/approot.inc.php b/approot.inc.php
index a180e8560..e56fe770e 100644
--- a/approot.inc.php
+++ b/approot.inc.php
@@ -3,4 +3,17 @@
 define('APPROOT', dirname(__FILE__).'/');
 define('APPCONF', APPROOT.'conf/');
 
+
+/**
+ * Constant containing the iTop core version, whatever application was built
+ *
+ * Note that in iTop 3.0.0 we used {@see ITOP_DESIGN_LATEST_VERSION} to get core version.
+ * When releasing, both constants should be updated : see `.make/release/update-versions.php` for that !
+ *
+ * @since 2.7.7 3.0.1 3.1.0 N°4714 constant creation
+ * @used-by utils::GetItopPatchVersion
+ */
+define('ITOP_CORE_VERSION', '2.7.7');
+
+
 require_once APPROOT.'bootstrap.inc.php';
diff --git a/core/config.class.inc.php b/core/config.class.inc.php
index 6036b8f02..2adc5023c 100644
--- a/core/config.class.inc.php
+++ b/core/config.class.inc.php
@@ -31,17 +31,6 @@ define('ITOP_APPLICATION_SHORT', 'iTop');
  */
 define('ITOP_VERSION', '2.7.0-dev');
 
-/**
- * Constant containing the iTop core version, whatever application was built
- *
- * Note that in iTop 3.0.0 we used {@see ITOP_DESIGN_LATEST_VERSION} to get core version.
- * When releasing, both constants should be updated : see `.make/release/update-versions.php` for that !
- *
- * @since 2.7.7 3.0.1 3.1.0 N°4714 constant creation
- * @used-by utils::GetItopPatchVersion
- */
-define('ITOP_CORE_VERSION', '2.7.7');
-
 define('ITOP_REVISION', 'svn');
 define('ITOP_BUILD_DATE', '$WCNOW$');
 define('ITOP_VERSION_FULL', ITOP_VERSION.'-'.ITOP_REVISION);