diff --git a/linux-tkg-config/prepare b/linux-tkg-config/prepare
index 9249196..0c96497 100644
--- a/linux-tkg-config/prepare
+++ b/linux-tkg-config/prepare
@@ -302,11 +302,11 @@ _set_cpu_scheduler() {
 
   if [ "${_preempt_rt}" = "1" ]; then
     warning "! Since you have enabled _preempt_rt, incompatible cpu schedulers will not be available !"
+    _avail_cpu_scheds_rt=("cfs")
     if [[ "${_avail_cpu_scheds[*]}" =~ "bore" ]]; then
-      _avail_cpu_scheds=("cfs" "bore")
-    else
-      _avail_cpu_scheds=("cfs")
+      _avail_cpu_scheds_rt+=("bore")
     fi
+    _avail_cpu_scheds=(${_avail_cpu_scheds_rt[*]})
   fi
 
   # Populate descriptions of the available CPU schedulers