diff --git a/gentooup.sh b/gentooup.sh
index 31666a3..08361dc 100755
--- a/gentooup.sh
+++ b/gentooup.sh
@@ -117,16 +117,18 @@ fi
 echo "***************** remove unneeded packages *******************"
 echo Started at "$STARTDATE"
 
-#make sure that current kernel sources are kept:
-CURRENTKERNELVERSION="$(uname -r)"
-echo current installed kernel:"${CURRENTKERNELVERSION/"-gentoo"/}"
-emerge --noreplace gentoo-sources:"${CURRENTKERNELVERSION/"-gentoo"/}"
-emerge -a  "${PORTAGE_OPTIONS[@]}" --depclean
-if [[ "$(grep -c gentoo-sources /var/lib/portage/world)" -gt 2 ]] ; then
-  echo too many kernelversion in world file!
-  grep gentoo-source /var/lib/portage/world
+if [[ $(qlist -I gentoo-sources) != "" ]] ; then
+  #make sure that current kernel sources are kept:
+  CURRENTKERNELVERSION="$(uname -r)"
+  echo current running kernel:"${CURRENTKERNELVERSION/"-gentoo"/}"
+  emerge --noreplace gentoo-sources:"${CURRENTKERNELVERSION/"-gentoo"/}"
+  emerge -a  "${PORTAGE_OPTIONS[@]}" --depclean
+  if [[ "$(grep -c gentoo-sources /var/lib/portage/world)" -gt 2 ]] ; then
+    echo too many kernelversion in world file!
+    grep gentoo-source /var/lib/portage/world
+  fi
+  emerge "${PORTAGE_OPTIONS[@]}" --deselect gentoo-sources:"${CURRENTKERNELVERSION/"-gentoo"/}"
 fi
-emerge "${PORTAGE_OPTIONS[@]}" --deselect gentoo-sources:"${CURRENTKERNELVERSION/"-gentoo"/}"
 
 if [[ -n "$(which restart_services)" ]] ; then
   restart_services -l