diff --git a/SPECS/kernel.spec b/SPECS/kernel.spec
index 1ffd315..050f3b6 100644
--- a/SPECS/kernel.spec
+++ b/SPECS/kernel.spec
@@ -440,10 +440,10 @@ Source9: x509.genkey
 
 # Name of the packaged file containing signing key
 %ifarch ppc64le
-%define signing_key_filename clsecureboot001.cer
+%define signing_key_filename kernel-signing-ppc.cer
 %endif
 %ifarch s390x
-%define signing_key_filename clsecureboot001.cer
+%define signing_key_filename kernel-signing-s390.cer
 %endif
 
 Source11: clsecureboot001.cer