diff --git a/README.md b/README.md
index 08842ed..ecd4735 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ Feel free to contribute!
 (require '[clj-librato.metrics :as metrics])
 
 ; pass it an email, api key, list of gauges, and a list of counters
-(metrics/collate "me@mydomain.com" "my-api-key" [{:name "gauge 1" value: 34 } {:name "gauge 2" value: 0}] 
+(metrics/collate "me@mydomain.com" "my-api-key" [{:name "gauge 1" :value 34 } {:name "gauge 2" :value 0}] 
                                                 [{:name "a counter" :value 79213}])
 ````