diff --git a/cpp/src/parquet/arrow/writer.cc b/cpp/src/parquet/arrow/writer.cc
index 5238986c428d3..bd6f542d11c72 100644
--- a/cpp/src/parquet/arrow/writer.cc
+++ b/cpp/src/parquet/arrow/writer.cc
@@ -547,8 +547,8 @@ Status GetSchemaMetadata(const ::arrow::Schema& schema, ::arrow::MemoryPool* poo
   // The serialized schema is not UTF-8, which is required for Thrift
   std::string schema_as_string = serialized->ToString();
   std::string schema_base64 = ::arrow::util::base64_encode(schema_as_string);
-  result->Append(kArrowSchemaKey, schema_base64);
-  *out = result;
+  result->Append(kArrowSchemaKey, std::move(schema_base64));
+  *out = std::move(result);
   return Status::OK();
 }