diff --git a/spark/src/main/scala/org/apache/spark/sql/delta/commands/WriteIntoDelta.scala b/spark/src/main/scala/org/apache/spark/sql/delta/commands/WriteIntoDelta.scala
index c6251298309..9c2505aeed9 100644
--- a/spark/src/main/scala/org/apache/spark/sql/delta/commands/WriteIntoDelta.scala
+++ b/spark/src/main/scala/org/apache/spark/sql/delta/commands/WriteIntoDelta.scala
@@ -143,7 +143,7 @@ case class WriteIntoDelta(
         clusterBySpecOpt
       }
     val rearrangeOnly = options.rearrangeOnly
-    val charPadding = sparkSession.conf.get(SQLConf.READ_SIDE_CHAR_PADDING.key, "false") == "true"
+    val charPadding = sparkSession.conf.get(SQLConf.READ_SIDE_CHAR_PADDING)
     val charAsVarchar = sparkSession.conf.get(SQLConf.CHAR_AS_VARCHAR)
     val dataSchema = if (!charAsVarchar && charPadding) {
       data.schema