Postgresql granting a username to specific database

I'm trying to create a user that only has access to one database. It's telling me database doesn't exist but clearly it does by following. postgres=# \l List of databases Name | Owner | Encoding | Collate | Ctype | ICU Locale | Locale Provider | Access privileges -----------+----------+----------+---------+---------+------------+-----------------+----------------------- GarsDB | postgres | UTF8 | C.UTF-8 | C.UTF-8 | | libc | postgres | postgres | UTF8 | C.UTF-8 | C.UTF-8 | | libc | template0 | postgres | UTF8 | C.UTF-8 | C.UTF-8 | | libc | =c/postgres + | | | | | | | postgres=CTc/postgres template1 | postgres | UTF8 | C.UTF-8 | C.UTF-8 | | libc | =c/postgres + | | | | | | | postgres=CTc/postgres (4 rows) postgres=# grant all privileges on database GarsDB to gars; ERROR: database "garsdb" does not exist postgres=# grant all privileges on database garsdb to gars; ERROR: database "garsdb" does not exist postgres=# Any ideas what could be going on? I've only been using Postgres recently.