diff --git a/sql-plugin/src/main/scala/com/nvidia/spark/rapids/GpuOverrides.scala b/sql-plugin/src/main/scala/com/nvidia/spark/rapids/GpuOverrides.scala
index cc15b76b2d2..7a951a9d603 100644
--- a/sql-plugin/src/main/scala/com/nvidia/spark/rapids/GpuOverrides.scala
+++ b/sql-plugin/src/main/scala/com/nvidia/spark/rapids/GpuOverrides.scala
@@ -413,6 +413,12 @@ object GpuOverrides {
         g.qualifier,
         g.explicitMetadata)
           .canonicalized
+    case g: GpuSubstring =>
+      Substring(
+        canonicalizeToCpuForSortOrder(g.str),
+        canonicalizeToCpuForSortOrder(g.pos),
+        canonicalizeToCpuForSortOrder(g.len))
+          .canonicalized
     case o: GpuExpression =>
       throw new IllegalStateException(s"${o.getClass} is not expected to be a part of a SortOrder")
     case other => other.canonicalized