diff --git a/linux-tkg-config/prepare b/linux-tkg-config/prepare
index 63caa82e..b8a5e54d 100644
--- a/linux-tkg-config/prepare
+++ b/linux-tkg-config/prepare
@@ -656,6 +656,8 @@ _tkg_srcprep() {
     if [ -n "$_custom_pkgbase" ]; then
       if [[ "$_custom_pkgbase" != *tkg* ]]; then
         _localversion_tag="-tkg-"
+      else
+        _localversion_tag="-"
       fi
       echo "-${pkgrel}${_localversion_tag}${_custom_pkgbase}" > localversion.10-pkgrel
       echo -e "Version tail set to \"-${pkgrel}${_localversion_tag}${_custom_pkgbase}\"\n" > "$_where"/logs/prepare.log.txt