diff --git a/VirtualBox.spec b/VirtualBox.spec
index b7061b9..811f098 100644
--- a/VirtualBox.spec
+++ b/VirtualBox.spec
@@ -17,7 +17,7 @@
 %endif
 
 Name:          VirtualBox
-Version:       5.1.2
+Version:       5.1.4
 Release:       2mamba
 Summary:       A general-purpose full virtualizer for x86 hardware
 Group:         Graphical Desktop/Applications/Utilities
@@ -164,7 +164,7 @@ Kernel DRM driver for VirtualBox guest machines.
 #%patch3 -p1
 %patch5 -p1
 #%patch6 -p2
-%patch7 -p1
+#%patch7 -p1
 %patch8 -p1
 
 echo "\
@@ -180,7 +180,7 @@ VBOX_GCC_WARN=
 VBOX_WITH_TESTCASES=
 VBOX_WITH_TESTSUITE=
 VBOX_WITH_VALIDATIONKIT=
-VBOX_VERSION_STRING=\$(VBOX_VERSION_MAJOR).\$(VBOX_VERSION_MINOR).\$(VBOX_VERSION_BUILD)_openmamba
+#VBOX_VERSION_STRING=\$(VBOX_VERSION_MAJOR).\$(VBOX_VERSION_MINOR).\$(VBOX_VERSION_BUILD)_openmamba
 VBOX_JAVA_HOME=%{_jvmdir}/jdk
 # fix gsoap missing zlib include and produce errors with --as-needed
 VBOX_GSOAP_CXX_LIBS := gsoapssl++ z
@@ -657,6 +657,12 @@ fi
 %{_prefix}/src/vboxvideo-%{version}/*
 
 %changelog
+* Sun Aug 21 2016 Silvan Calarco <silvan.calarco@mambasoft.it> 5.1.4-2mamba
+- remove custom VBOX_VERSION_STRING to fix built-in extensions loading
+
+* Sat Aug 20 2016 Automatic Build System <autodist@mambasoft.it> 5.1.4-1mamba
+- automatic version update by autodist
+
 * Sun Jul 24 2016 Silvan Calarco <silvan.calarco@mambasoft.it> 5.1.2-2mamba
 - fix error in permissions of suid binaries