diff -up gnupg-2.2.16/sm/certlist.c.keyusage gnupg-2.2.16/sm/certlist.c

--- gnupg-2.2.16/sm/certlist.c.keyusage	2019-07-01 17:17:06.925254065 +0200

+++ gnupg-2.2.16/sm/certlist.c	2019-07-01 17:24:15.665759322 +0200

@@ -147,10 +147,9 @@ cert_usage_p (ksba_cert_t cert, int mode

   if (mode == 5)

     {

-      if (use != ~0

-          && (have_ocsp_signing

-              || (use & (KSBA_KEYUSAGE_KEY_CERT_SIGN

-                         |KSBA_KEYUSAGE_CRL_SIGN))))

+      if (have_ocsp_signing

+          || (use & (KSBA_KEYUSAGE_KEY_CERT_SIGN

+                     |KSBA_KEYUSAGE_CRL_SIGN)))

         return 0;

       if (!silent)

         log_info (_("certificate should not have "