diff --git a/crates/cuddle-clusters/src/catalog/postgres_database.rs b/crates/cuddle-clusters/src/catalog/postgres_database.rs
index 0d22ea5..a1319a7 100644
--- a/crates/cuddle-clusters/src/catalog/postgres_database.rs
+++ b/crates/cuddle-clusters/src/catalog/postgres_database.rs
@@ -101,7 +101,7 @@ metadata:
 data:
   DATABASE_TYPE: postgresql
   DATABASE_HOST: {{ environment }}.postgresql.kjuulh.app
-  DATABASE_PORT: {{ port }}
+  DATABASE_PORT: "{{ port }}"
   DATABASE_USER: {{ vars.cuddle_vars.service | replace("-", "_") }}
   DATABASE_DB: {{ vars.cuddle_vars.service | replace("-", "_") }}
 
diff --git a/crates/cuddle-clusters/tests/with_postgres_database/expected/dev/cuddle-postgres.yaml b/crates/cuddle-clusters/tests/with_postgres_database/expected/dev/cuddle-postgres.yaml
index dbef0ec..15f6ec4 100644
--- a/crates/cuddle-clusters/tests/with_postgres_database/expected/dev/cuddle-postgres.yaml
+++ b/crates/cuddle-clusters/tests/with_postgres_database/expected/dev/cuddle-postgres.yaml
@@ -7,6 +7,6 @@ metadata:
 data:
   DATABASE_TYPE: postgresql
   DATABASE_HOST: dev.postgresql.kjuulh.app
-  DATABASE_PORT: 5433
+  DATABASE_PORT: "5433"
   DATABASE_USER: service
   DATABASE_DB: service