diff --git a/intrastat_product/__init__.py b/intrastat_product/__init__.py
index cf6083c..c120419 100644
--- a/intrastat_product/__init__.py
+++ b/intrastat_product/__init__.py
@@ -1,3 +1,4 @@
 from . import models
 from . import report
 from . import wizards
+from .hooks import pre_init_hook
diff --git a/intrastat_product/__manifest__.py b/intrastat_product/__manifest__.py
index 1ad9b3a..32c283d 100644
--- a/intrastat_product/__manifest__.py
+++ b/intrastat_product/__manifest__.py
@@ -41,4 +41,5 @@
     ],
     "demo": ["demo/intrastat_demo.xml"],
     "installable": True,
+    "pre_init_hook": "pre_init_hook",
 }
diff --git a/intrastat_product/hooks.py b/intrastat_product/hooks.py
new file mode 100644
index 0000000..6877121
--- /dev/null
+++ b/intrastat_product/hooks.py
@@ -0,0 +1,35 @@
+# Copyright 2022 Stefan Rijnhart <stefan@opener.amsterdam>
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+import logging
+
+
+def pre_init_hook(cr):
+    """Prepopulate stored computed fields for faster installation"""
+    logger = logging.getLogger(__name__)
+    logger.info("Prepopulating stored computed fields")
+    cr.execute(
+        """
+        alter table account_move
+        add column if not exists src_dest_country_id integer;
+        """
+    )
+    cr.execute(
+        """
+        with countries as (
+            select am.id as move_id,
+            coalesce(
+                rps.country_id,
+                rp.country_id,
+                rpc.country_id
+            ) as country_id
+            from account_move am
+            left join res_partner rps on rps.id = am.partner_shipping_id
+            join res_partner rp on rp.id = am.partner_id
+            join res_company rc on rc.id = am.company_id
+            join res_partner rpc on rpc.id = rc.partner_id
+        )
+        update account_move am
+        set src_dest_country_id = countries.country_id
+        from countries where am.id = countries.move_id;
+        """
+    )
diff --git a/intrastat_product/models/intrastat_product_declaration.py b/intrastat_product/models/intrastat_product_declaration.py
index 43839ad..8e80a3d 100644
--- a/intrastat_product/models/intrastat_product_declaration.py
+++ b/intrastat_product/models/intrastat_product_declaration.py
@@ -978,9 +978,9 @@ class IntrastatProductDeclaration(models.Model):
 
     def create_xls(self):
         if self.env.context.get("computation_lines"):
-            report_file = "instrastat_transactions"
+            report_file = "intrastat_transactions"
         else:
-            report_file = "instrastat_declaration_lines"
+            report_file = "intrastat_declaration_lines"
         return {
             "type": "ir.actions.report",
             "report_type": "xlsx",