diff --git a/src/main/java/com/rabbitmq/client/ConnectionFactory.java b/src/main/java/com/rabbitmq/client/ConnectionFactory.java
index 12bee27ce..063d0c427 100644
--- a/src/main/java/com/rabbitmq/client/ConnectionFactory.java
+++ b/src/main/java/com/rabbitmq/client/ConnectionFactory.java
@@ -373,7 +373,7 @@ public ConnectionFactory setUri(URI uri)
     if (userInfo != null) {
       String userPass[] = userInfo.split(":");
       if (userPass.length > 2) {
-        throw new IllegalArgumentException("Bad user info in AMQP " + "URI: " + userInfo);
+        throw new IllegalArgumentException("Bad user info in AMQP URI: user info contains more than one colon");
       }
 
       setUsername(uriDecode(userPass[0]));