diff --git a/velox/functions/sparksql/Hash.cpp b/velox/functions/sparksql/Hash.cpp
index 0f815bd71ce5d..d0d3c7cf260da 100644
--- a/velox/functions/sparksql/Hash.cpp
+++ b/velox/functions/sparksql/Hash.cpp
@@ -315,7 +315,7 @@ void applyWithType(
     if (args[i]->mayHaveNulls()) {
       *selectedMinusNulls.get(rows.end()) = rows;
       selectedMinusNulls->deselectNulls(
-          decoded->nulls(), rows.begin(), rows.end());
+          decoded->nulls(&rows), rows.begin(), rows.end());
       selected = selectedMinusNulls.get();
     }