diff --git a/contrib/check-config.sh b/contrib/check-config.sh
index cb6a4f2b50..cde194b54f 100755
--- a/contrib/check-config.sh
+++ b/contrib/check-config.sh
@@ -146,6 +146,7 @@ echo 'Optional Features:'
 flags=(
 	MEMCG_SWAP
 	RESOURCE_COUNTERS
+	CGROUP_PERF
 )
 check_flags "${flags[@]}"