diff --git a/lib/datasource.js b/lib/datasource.js
index 38271117..28f6378a 100644
--- a/lib/datasource.js
+++ b/lib/datasource.js
@@ -1710,7 +1710,7 @@ DataSource.prototype.defineForeignKey = function defineForeignKey(className, key
   }
 
   var fkDef = {type: pkType};
-  var foreignMeta = this.columnMetadata(foreignClassName, key);
+  var foreignMeta = this.columnMetadata(foreignClassName, pkName);
   if(foreignMeta && foreignMeta.dataType) {
     fkDef[this.connector.name] = {};
     fkDef[this.connector.name].dataType = foreignMeta.dataType;