diff --git a/stock_packaging_calculator/models/product.py b/stock_packaging_calculator/models/product.py
index 5f93424247df..6d082dc001e4 100644
--- a/stock_packaging_calculator/models/product.py
+++ b/stock_packaging_calculator/models/product.py
@@ -201,7 +201,7 @@ def product_qty_by_packaging_as_str(
             as_string.append(f"{unit_qty} {self.uom_id.name}")
         # We want to avoid line break here as this string
         # can be used by reports
-        res = f",{NO_BREAK_SPACE_CHAR}".join(as_string)
+        res = f", {NO_BREAK_SPACE_CHAR}".join(as_string)
         if include_total_units and not has_only_units:
             res += " " + self._qty_by_packaging_total_units(prod_qty)
         return res