diff --git a/sql-plugin/src/main/scala/org/apache/spark/sql/rapids/collectionOperations.scala b/sql-plugin/src/main/scala/org/apache/spark/sql/rapids/collectionOperations.scala
index 7f0a82517c3..41c2e5e3776 100644
--- a/sql-plugin/src/main/scala/org/apache/spark/sql/rapids/collectionOperations.scala
+++ b/sql-plugin/src/main/scala/org/apache/spark/sql/rapids/collectionOperations.scala
@@ -49,8 +49,8 @@ case class GpuConcat(children: Seq[Expression]) extends GpuComplexTypeMergingExp
 
   override def columnarEval(batch: ColumnarBatch): GpuColumnVector = {
     val res = dataType match {
-      // Explicitly return null for empty concat as Spark, since cuDF doesn't support empty concat.
-      case dt if children.isEmpty => GpuScalar.from(null, dt)
+      // in Spark concat() will be considered as an empty string here
+      case dt if children.isEmpty => GpuScalar("", dt)
       // For single column concat, we pass the result of child node to avoid extra cuDF call.
       case _ if children.length == 1 => children.head.columnarEval(batch)
       case StringType => stringConcat(batch)
diff --git a/tests/src/test/spark330/scala/org/apache/spark/sql/rapids/utils/RapidsTestSettings.scala b/tests/src/test/spark330/scala/org/apache/spark/sql/rapids/utils/RapidsTestSettings.scala
index ad93c4dd2e9..4cf155041d9 100644
--- a/tests/src/test/spark330/scala/org/apache/spark/sql/rapids/utils/RapidsTestSettings.scala
+++ b/tests/src/test/spark330/scala/org/apache/spark/sql/rapids/utils/RapidsTestSettings.scala
@@ -72,7 +72,6 @@ class RapidsTestSettings extends BackendTestSettings {
   enableSuite[RapidsMathFunctionsSuite]
   enableSuite[RapidsRegexpExpressionsSuite]
   enableSuite[RapidsStringExpressionsSuite]
-    .exclude("concat", KNOWN_ISSUE("https://github.com/NVIDIA/spark-rapids/issues/10775"))
     .exclude("string substring_index function", KNOWN_ISSUE("https://github.com/NVIDIA/spark-rapids/issues/10775"))
     .exclude("SPARK-22498: Concat should not generate codes beyond 64KB", KNOWN_ISSUE("https://github.com/NVIDIA/spark-rapids/issues/10775"))
     .exclude("SPARK-22549: ConcatWs should not generate codes beyond 64KB", KNOWN_ISSUE("https://github.com/NVIDIA/spark-rapids/issues/10775"))