diff --git a/lib/libsecureboot/openpgp/opgp_sig.c b/lib/libsecureboot/openpgp/opgp_sig.c
index b99a1be459c..73c482e4c28 100644
--- a/lib/libsecureboot/openpgp/opgp_sig.c
+++ b/lib/libsecureboot/openpgp/opgp_sig.c
@@ -341,6 +341,7 @@ openpgp_verify(const char *filename,
 				break;
 			default:
 				warnx("unsupported hash algorithm: %s", hname);
+				rc = -1;
 				goto oops;
 			}
 			md->init(&mctx.vtable);