diff --git a/patch.yml b/patch.yml
index 0769bd6..dba1e0b 100644
--- a/patch.yml
+++ b/patch.yml
@@ -103,6 +103,7 @@ build_patch:
     - munge
     - woff2
   r9:
+    - perl-Devel-CheckLib
     - owasp-java-encoder
     - mariadb
     - nss