diff --git a/linux-tkg-config/prepare b/linux-tkg-config/prepare
index ecc86c1..cc0527a 100644
--- a/linux-tkg-config/prepare
+++ b/linux-tkg-config/prepare
@@ -20,7 +20,7 @@ _kver_subver_map=(
   ["5.15"]="41"
   ["5.16"]="20"
   ["5.17"]="9"
-  ["5.18"]="rc7"
+  ["5.18"]="0"
 )
 
 # PREEMPT_RT's supported kernel subversion