diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala
index 06a148f063201..ef054e77707ac 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala
@@ -293,10 +293,7 @@ abstract class CastBase extends UnaryExpression with TimeZoneAwareExpression wit
    */
   def typeCheckFailureMessage: String
 
-  override def toString: String = {
-    val ansi = if (ansiEnabled) "ansi_" else ""
-    s"${ansi}cast($child as ${dataType.simpleString})"
-  }
+  override def toString: String = s"cast($child as ${dataType.simpleString})"
 
   override def checkInputDataTypes(): TypeCheckResult = {
     if (canCast(child.dataType, dataType)) {
diff --git a/sql/core/src/test/resources/sql-tests/results/ansi/string-functions.sql.out b/sql/core/src/test/resources/sql-tests/results/ansi/string-functions.sql.out
index 4c0aa8c948334..ec7f41dcf4bff 100644
--- a/sql/core/src/test/resources/sql-tests/results/ansi/string-functions.sql.out
+++ b/sql/core/src/test/resources/sql-tests/results/ansi/string-functions.sql.out
@@ -928,7 +928,7 @@ select to_binary(null, cast(null as int))
 struct<>
 -- !query output
 org.apache.spark.sql.AnalysisException
-cannot resolve 'to_binary(NULL, CAST(NULL AS INT))' due to data type mismatch: Unsupported encoding format: Some(ansi_cast(null as int)). The format has to be a case-insensitive string literal of 'hex', 'utf-8', or 'base64'; line 1 pos 7
+cannot resolve 'to_binary(NULL, CAST(NULL AS INT))' due to data type mismatch: Unsupported encoding format: Some(cast(null as int)). The format has to be a case-insensitive string literal of 'hex', 'utf-8', or 'base64'; line 1 pos 7
 
 
 -- !query