diff --git a/rma/models/stock_move.py b/rma/models/stock_move.py
index ee788924..eaa41114 100644
--- a/rma/models/stock_move.py
+++ b/rma/models/stock_move.py
@@ -4,6 +4,7 @@
 
 from odoo import _, api, fields, models
 from odoo.exceptions import ValidationError
+from odoo.tools import float_compare
 
 
 class StockMove(models.Model):
@@ -60,7 +61,18 @@ class StockMove(models.Model):
         """
         for move in self.filtered(lambda r: r.state not in ("done", "cancel")):
             rma_receiver = move.sudo().rma_receiver_ids
-            if rma_receiver and move.quantity_done != rma_receiver.product_uom_qty:
+            qty_prec = self.env["decimal.precision"].precision_get(
+                "Product Unit of Measure"
+            )
+            if (
+                rma_receiver
+                and float_compare(
+                    move.quantity_done,
+                    rma_receiver.product_uom_qty,
+                    precision_digits=qty_prec,
+                )
+                != 0
+            ):
                 raise ValidationError(
                     _(
                         "The quantity done for the product '%(id)s' must "
diff --git a/rma/models/stock_picking.py b/rma/models/stock_picking.py
index fa48d578..070cdabd 100644
--- a/rma/models/stock_picking.py
+++ b/rma/models/stock_picking.py
@@ -31,7 +31,7 @@ class StockPicking(models.Model):
     def action_view_rma(self):
         self.ensure_one()
         action = self.env["ir.actions.act_window"]._for_xml_id("rma.rma_action")
-        rma = self.move_lines.mapped("rma_ids")
+        rma = self.move_ids.rma_ids
         if len(rma) == 1:
             action.update(
                 res_id=rma.id,