diff --git a/mllib/src/main/scala/org/apache/spark/ml/feature/VectorAssembler.scala b/mllib/src/main/scala/org/apache/spark/ml/feature/VectorAssembler.scala
index 51acbf3806..3070012266 100644
--- a/mllib/src/main/scala/org/apache/spark/ml/feature/VectorAssembler.scala
+++ b/mllib/src/main/scala/org/apache/spark/ml/feature/VectorAssembler.scala
@@ -288,7 +288,7 @@ object VectorAssembler extends DefaultParamsReadable[VectorAssembler] {
           featureIndex += length
         } else {
           throw new SparkException(
-            s"""Encountered null while assembling a row with handleInvalid = "keep". Consider
+            s"""Encountered null while assembling a row with handleInvalid = "error". Consider
                |removing nulls from dataset or using handleInvalid = "keep" or "skip"."""
               .stripMargin)
         }