Index: b/keyserver/gpgkeys_curl.c
===================================================================
--- b/keyserver/gpgkeys_curl.c
+++ b/keyserver/gpgkeys_curl.c
@@ -304,7 +304,11 @@
     }
 
   curl_easy_setopt(curl,CURLOPT_SSL_VERIFYPEER,(long)opt->flags.check_cert);
-  curl_easy_setopt(curl,CURLOPT_CAINFO,opt->ca_cert_file);
+
+  if(opt->ca_cert_info)
+    {
+      curl_easy_setopt(curl,CURLOPT_CAINFO,opt->ca_cert_file);
+    }
 
   /* Avoid caches to get the most recent copy of the key.  This is bug
      #1061.  In pre-curl versions of the code, we didn't do it.  Then