diff --git a/README.md b/README.md
index 03969ba..a0d7a71 100644
--- a/README.md
+++ b/README.md
@@ -37,3 +37,19 @@ the `::iban` datatype can be cast to an text to perform string operations
 ```sql
 SELECT 'KZ86125KZT5004100100'::iban::text;
 ```
+
+## Build
+
+Make sure PostgreSQL development tools are installed (check `pg_config`)
+
+```
+git clone https://github.com/yorickdewid/PostgreSQL-IBAN
+cd PostgreSQL-IBAN
+make install
+```
+
+Login to the database and load the extension
+
+```
+CREATE EXTENSION iban;
+```