diff --git a/plugins/carbon/carbon.c b/plugins/carbon/carbon.c
index df9b58c4..6553c9a9 100644
--- a/plugins/carbon/carbon.c
+++ b/plugins/carbon/carbon.c
@@ -52,6 +52,7 @@ int carbon_opt(int i, char *optarg) {
 
 void carbon_post_init() {
 
+	int i;
 	struct uwsgi_string_list *usl = u_carbon.servers;
 	if (!uwsgi.sockets) return;
 	if (!u_carbon.servers) return;
@@ -63,7 +64,11 @@ void carbon_post_init() {
 
 	if (u_carbon.freq < 1) u_carbon.freq = 60;
 	if (u_carbon.timeout < 1) u_carbon.timeout = 3;
-	if (!u_carbon.id) u_carbon.id = uwsgi.sockets->name;
+	if (!u_carbon.id) u_carbon.id = uwsgi_str(uwsgi.sockets->name);
+
+	for(i=0;i<(int)strlen(u_carbon.id);i++) {
+		if (u_carbon.id[i] == '.') u_carbon.id[i] = '_';
+	}
 
 }