diff --git a/main.go b/main.go
index 7637e32..8668cef 100644
--- a/main.go
+++ b/main.go
@@ -64,9 +64,9 @@ func NewCounter() *Counter {
 func (c *Counter) MetricsHandler(w http.ResponseWriter, r *http.Request) {
 	w.Header().Add("Content-Type", "text/plain")
 	for i, name := range c.names {
-		fmt.Fprintf(w, "rc3_stream_count[name=%q] %d\n", name, c.counters[i])
+		fmt.Fprintf(w, "rc3_stream_count{name=%q} %d\n", name, c.counters[i])
 	}
-	fmt.Fprintf(w, "rc3_stream_current[name=\"%d\"] 1\n", c.current)
+	fmt.Fprintf(w, "rc3_stream_current{name=\"%d\"} 1\n", c.current)
 }
 
 func (c *Counter) ScanStdin() {