diff --git a/builtin/providers/consul/config.go b/builtin/providers/consul/config.go
index 959293f84..99897505d 100644
--- a/builtin/providers/consul/config.go
+++ b/builtin/providers/consul/config.go
@@ -52,7 +52,7 @@ func (c *Config) Client() (*consulapi.Client, error) {
 		} else {
 			username = c.HttpAuth
 		}
-		config.HttpAuth = &consulapi.HttpBasicAuth{username, password}
+		config.HttpAuth = &consulapi.HttpBasicAuth{Username: username, Password: password}
 	}
 
 	if c.Token != "" {