diff --git a/README.md b/README.md
index 7a8215e..efebda5 100644
--- a/README.md
+++ b/README.md
@@ -6,9 +6,11 @@ Supported Postgres versions: 9.1 and up.
 ## Building and running
 
     make
-    export DATA_SOURCE_NAME="login:password@(hostname:port)/dbname"
+    export DATA_SOURCE_NAME="postgres://postgres:password@localhost/?sslmode=disable"
     ./postgres_exporter <flags>
 
+See the github.com/lib/pg module for other ways to format the connection string.
+
 ### Flags
 
 Name               | Description
@@ -35,4 +37,4 @@ for l in StringIO(x):
     print """"{0}" : {{ prometheus.CounterValue, prometheus.NewDesc("pg_stat_database_{0}", "{2}", nil, nil) }}, """.format(column.strip(), ctype, description.strip())
 ```
 Adjust the value of the resultant prometheus value type appropriately. This helps build
-rich self-documenting metrics for the exporter.
\ No newline at end of file
+rich self-documenting metrics for the exporter.