diff --git a/linux-tkg-config/prepare b/linux-tkg-config/prepare
index ccf0e0d..6525c75 100644
--- a/linux-tkg-config/prepare
+++ b/linux-tkg-config/prepare
@@ -206,6 +206,11 @@ _tkg_initscript() {
     echo "_custom_pkgbase=\"${_custom_pkgbase}\"" >> "${_path}"/cpuschedset
   fi
 
+  if [ "$_basever" = "511" ] && [ "$_cpusched" != "cfs" ]; then
+    warning "No support for alternative CPU schedulers on this kernel version. Defaulting to CFS."
+    echo "_cpusched=\"cfs\"" > "${_path}"/cpuschedset
+  fi
+
   case $_compileroptlevel in
 	"2")
 	_compileropt="-O3"