diff --git a/linux-tkg-config/prepare b/linux-tkg-config/prepare
index 87b071f..d44ceba 100644
--- a/linux-tkg-config/prepare
+++ b/linux-tkg-config/prepare
@@ -452,7 +452,7 @@ _tkg_srcprep() {
   elif [ "$_basever" = "57" ]; then
     _outdated="outdated_versions/"
     _patch_name="enable_additional_cpu_optimizations_for_gcc_v10.1%2B_kernel_v5.7"
-  elif (( 58 <= "$_basever" &&  "$_basever" <= 514 && "$_basever" != 6* )); then
+  elif (( 58 <= "$_basever" &&  "$_basever" <= 514 )) && [[ "$_basever" != 6* ]]; then
     _patch_name="more-uarches-for-kernel-5.8-5.14"
   elif [[ "$_basever" =~ ^(515|516)$ ]]; then
     _patch_name="more-uarches-for-kernel-5.15-5.16"