diff --git a/src/models/pagination/mod.rs b/src/models/pagination/mod.rs
index 04209da..c3ac7aa 100644
--- a/src/models/pagination/mod.rs
+++ b/src/models/pagination/mod.rs
@@ -10,26 +10,26 @@ pub enum Sort {
   DESC(String),
 }
 
-impl From<Sort> for bpr::protobuf::pagination::Sort {
-  fn from(d: Sort) -> Self {
+impl From<&Sort> for bpr::protobuf::pagination::Sort {
+  fn from(d: &Sort) -> Self {
     match d {
       Sort::ASC(by) => bpr::protobuf::pagination::Sort {
-        by,
+        by: by.to_string(),
         order: bpr::protobuf::pagination::SortOrder::Asc as i32,
       },
       Sort::DESC(by) => bpr::protobuf::pagination::Sort {
-        by,
+        by: by.to_string(),
         order: bpr::protobuf::pagination::SortOrder::Desc as i32,
       },
     }
   }
 }
 
-impl From<bpr::protobuf::pagination::Sort> for Sort {
-  fn from(d: bpr::protobuf::pagination::Sort) -> Self {
+impl From<&bpr::protobuf::pagination::Sort> for Sort {
+  fn from(d: &bpr::protobuf::pagination::Sort) -> Self {
     match d.order {
-      x if x == bpr::protobuf::pagination::SortOrder::Desc as i32 => Sort::DESC(d.by),
-      _ => Sort::ASC(d.by),
+      x if x == bpr::protobuf::pagination::SortOrder::Desc as i32 => Sort::DESC(d.by.to_string()),
+      _ => Sort::ASC(d.by.to_string()),
     }
   }
 }