diff --git a/linux-tkg-config/prepare b/linux-tkg-config/prepare
index 704a5aa..0fbffa3 100644
--- a/linux-tkg-config/prepare
+++ b/linux-tkg-config/prepare
@@ -604,8 +604,13 @@ _tkg_srcprep() {
   fi
 
   if [ "${_distro}" = "Arch" ]; then
-    echo "-$pkgrel-tkg-${_cpusched}${_compiler_name}" > localversion.10-pkgrel
-    echo -e "Version tail set to \"-$pkgrel-tkg-${_cpusched}${_compiler_name}\"\n" > "$_where"/logs/prepare.log.txt
+    if [ -n "$_custom_pkgbase" ]; then
+      echo "-$pkgrel-tkg-${_custom_pkgbase}" > localversion.10-pkgrel
+      echo -e "Version tail set to \"-$pkgrel-tkg-${_custom_pkgbase}\"\n" > "$_where"/logs/prepare.log.txt
+    else
+      echo "-$pkgrel-tkg-${_cpusched}${_compiler_name}" > localversion.10-pkgrel
+      echo -e "Version tail set to \"-$pkgrel-tkg-${_cpusched}${_compiler_name}\"\n" > "$_where"/logs/prepare.log.txt
+    fi
     echo "" > localversion.20-pkgname
   fi