diff --git a/fixes_for_4.15.patch b/fixes_for_4.15.patch
index 7ddd841..0c2db6f 100644
--- a/fixes_for_4.15.patch
+++ b/fixes_for_4.15.patch
@@ -102,7 +102,7 @@ Index: VirtualBox-5.2.6/src/VBox/Additions/linux/drm/vbox_mode.c
 ===================================================================
 --- VirtualBox-5.2.6.orig/src/VBox/Additions/linux/drm/vbox_mode.c
 +++ VirtualBox-5.2.6/src/VBox/Additions/linux/drm/vbox_mode.c
-@@ -401,8 +401,13 @@ static struct drm_encoder *vbox_best_sin
+@@ -401,7 +401,11 @@ static struct drm_encoder *vbox_best_sin
  
  	/* pick the encoder ids */
  	if (enc_id)
@@ -113,7 +113,5 @@ Index: VirtualBox-5.2.6/src/VBox/Additions/linux/drm/vbox_mode.c
 +        return drm_encoder_find(connector->dev, enc_id);
 +#endif
  
-+	LogFunc(("vboxvideo: %d\n", __LINE__));
  	return NULL;
  }
- 
diff --git a/virtualbox-guest-kmp-files b/virtualbox-guest-kmp-files
index 2bfe28d..73cbf3a 100644
--- a/virtualbox-guest-kmp-files
+++ b/virtualbox-guest-kmp-files
@@ -1,5 +1,6 @@
 %defattr (-,root,root) 
 %dir /lib/modules/%2-%1/
 %dir /lib/modules/%2-%1/extra
+/lib/modules/%2-%1/extra/vboxvideo.ko
 /lib/modules/%2-%1/extra/vboxsf.ko
 /lib/modules/%2-%1/extra/vboxguest.ko
diff --git a/virtualbox.changes b/virtualbox.changes
index 20d21fc..b584417 100644
--- a/virtualbox.changes
+++ b/virtualbox.changes
@@ -1,3 +1,11 @@
+-------------------------------------------------------------------
+Sat Feb  3 14:23:26 UTC 2018 - wbauer@tmo.at
+
+- Update "fixes_for_4.15.patch": remove useless log statement that
+  broke building the vboxvideo guest kernel module
+- Build and install it again, it's needed for KMS support, i.e. for
+  Xorg's "modesetting" driver to work in the guest (boo#1079221)
+
 -------------------------------------------------------------------
 Thu Jan 18 19:01:59 UTC 2018 - Larry.Finger@lwfinger.net
 
diff --git a/virtualbox.spec b/virtualbox.spec
index 11d0e61..83e9981 100644
--- a/virtualbox.spec
+++ b/virtualbox.spec
@@ -483,10 +483,10 @@ install -D -m 644 "COPYING" "%{buildroot}%{_datadir}/licenses/LICENSE.vnc"
 #
 # build kernel modules for guest and host (check novel-kmp package as example)
 # host  modules : vboxdrv,vboxnetflt,vboxnetadp,vboxpci
-# guest modules : vboxguest,vboxsf
+# guest modules : vboxguest,vboxsf,vboxvideo
 echo "build kernel modules"
 for vbox_module in out/linux.*/release/bin/src/vbox{drv,netflt,netadp,pci} \
-           out/linux.*/release/bin/additions/src/vbox{guest,sf}; do
+           out/linux.*/release/bin/additions/src/vbox{guest,sf,video}; do
     #get the module name from path
     module_name=$(basename "$vbox_module")
 
@@ -514,10 +514,10 @@ for vbox_module in out/linux.*/release/bin/src/vbox{drv,netflt,netadp,pci} \
 	          $PWD/modules_build_dir/$flavor/$module_name
 	fi
 	# copy vboxguest (for guest) module symbols which are used by vboxvideo km:
-#	if [ "$module_name" = "vboxvideo" ]; then
-#	    cp $PWD/modules_build_dir/$flavor/vboxguest/Module.symvers \
-#	          $PWD/modules_build_dir/$flavor/$module_name
-#	fi
+	if [ "$module_name" = "vboxvideo" ]; then
+	    cp $PWD/modules_build_dir/$flavor/vboxguest/Module.symvers \
+	          $PWD/modules_build_dir/$flavor/$module_name
+	fi
 	# build the module for the specific flavor
 	make -j2 -C %{_prefix}/src/linux-obj/%{_target_cpu}/$flavor modules \
 		M=$PWD/modules_build_dir/$flavor/$module_name
@@ -556,7 +556,7 @@ export INSTALL_MOD_DIR=extra
 export INITRD_IN_POSTTRANS=1
 export KMP_NEEDS_MKINITRD=0
 #to install modules we use here similar steps like in build phase, go through all the modules :
-for module_name in vbox{drv,netflt,pci,netadp,guest,sf}
+for module_name in vbox{drv,netflt,pci,netadp,guest,sf,video}
 do
 	#and through the all flavors
 	for flavor in %{flavors_to_build}; do