diff --git a/nvidia_340.spec b/nvidia_340.spec
index 5f6a605..abb1e7b 100644
--- a/nvidia_340.spec
+++ b/nvidia_340.spec
@@ -2,7 +2,7 @@
 Name:          nvidia_340
 Version:       340.108
 Epoch:         1
-Release:       7mamba
+Release:       8mamba
 Summary:       NVIDIA proprietary accelerated drivers for the Linux Kernel
 Group:         System/Kernel and Hardware
 Vendor:        openmamba
@@ -265,6 +265,14 @@ if [ $1 -eq 0 ]; then
 fi
 :
 
+%triggerpostun -n xorg-drv-video-%{name} -- xorg-drv-video-%{name} < 1:340.108-8mamba
+# /bin and /sbin are removed during old filesystem postun
+# Fixes for removal of alternatives overwriting symlinks belonging to libglvnd
+[ "`readlink -f %{_libdir}/libGL.so.1`" = "%{_libdir}/libGL.so.340.108" ] && ln -sf libGL.so.1.7.0 %{_libdir}/libGL.so.1
+[ "`readlink -f %{_libdir}/libEGL.so.1`" = "%{_libdir}/libEGL.so.340.108" ] && ln -sf libEGL.so.1.1.0 %{_libdir}/libEGL.so.1
+[ "`readlink -f %{_libdir}/libGLESv2.so.2`" = "%{_libdir}/libGLESv2.so.340.108" ] && ln -sf libGLESv2.so.2.1.0 %{_libdir}/libGLESv2.so.2
+:
+
 %files -n xorg-drv-video-%{name}
 %defattr(-,root,root)
 #%{_sysconfdir}/profile.d/nvidia-clutter.sh
@@ -303,6 +311,9 @@ fi
 %doc current/{NVIDIA_Changelog,README.txt} current/html
 
 %changelog
+* Sun Apr 25 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 340.108-8mamba
+- fix for removal of alternatives overwriting symlinks belonging to libglvnd
+
 * Fri Apr 23 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 340.108-7mamba
 - repackaged with libglvnd and libmesa layout