diff --git a/lib/Drivers/DML/redshift.js b/lib/Drivers/DML/redshift.js
index 6b84974d..2ef26e46 100644
--- a/lib/Drivers/DML/redshift.js
+++ b/lib/Drivers/DML/redshift.js
@@ -24,7 +24,7 @@ Driver.prototype.insert = function (table, data, keyProperties, cb) {
 
 		var i, ids = {}, prop;
 
-		if (keyNames.length == 1) {
+		if (keyProperties.length == 1) {
 			this.execQuery("SELECT LASTVAL() AS id", function (err, results) {
 				if (err) return cb(err);