diff --git a/mllib/src/main/scala/org/apache/spark/mllib/fpm/FPGrowth.scala b/mllib/src/main/scala/org/apache/spark/mllib/fpm/FPGrowth.scala
index 4f4996f3be617e20640109bfec723f764facbb32..9166faa54de56db4095d5ebed002e5fc8fc552ac 100644
--- a/mllib/src/main/scala/org/apache/spark/mllib/fpm/FPGrowth.scala
+++ b/mllib/src/main/scala/org/apache/spark/mllib/fpm/FPGrowth.scala
@@ -327,5 +327,9 @@ object FPGrowth {
     def javaItems: java.util.List[Item] = {
       items.toList.asJava
     }
+
+    override def toString: String = {
+      s"${items.mkString("{", ",", "}")}: $freq"
+    }
   }
 }