diff --git a/src/core/nm-connectivity.c b/src/core/nm-connectivity.c
index 7199c9a242..eee837be17 100644
--- a/src/core/nm-connectivity.c
+++ b/src/core/nm-connectivity.c
@@ -694,6 +694,7 @@ do_curl_request(NMConnectivityCheckHandle *cb_data)
     curl_easy_setopt(ehandle, CURLOPT_INTERFACE, cb_data->ifspec);
     curl_easy_setopt(ehandle, CURLOPT_RESOLVE, cb_data->concheck.hosts);
     curl_easy_setopt(ehandle, CURLOPT_IPRESOLVE, resolve);
+    curl_easy_setopt(ehandle, CURLOPT_PROTOCOLS, CURLPROTO_HTTP | CURLPROTO_HTTPS);
 
     curl_multi_add_handle(mhandle, ehandle);
 }
diff --git a/src/nm-cloud-setup/nm-http-client.c b/src/nm-cloud-setup/nm-http-client.c
index 2f71cefa3d..7ef9f38d34 100644
--- a/src/nm-cloud-setup/nm-http-client.c
+++ b/src/nm-cloud-setup/nm-http-client.c
@@ -305,6 +305,7 @@ nm_http_client_get(NMHttpClient       *self,
     curl_easy_setopt(edata->ehandle, CURLOPT_WRITEFUNCTION, _get_writefunction_cb);
     curl_easy_setopt(edata->ehandle, CURLOPT_WRITEDATA, edata);
     curl_easy_setopt(edata->ehandle, CURLOPT_PRIVATE, edata);
+    curl_easy_setopt(edata->ehandle, CURLOPT_PROTOCOLS, CURLPROTO_HTTP | CURLPROTO_HTTPS);
 
     if (http_headers) {
         for (i = 0; http_headers[i]; ++i) {