diff --git a/charts/templates/nais.io_applications.yaml b/charts/templates/nais.io_applications.yaml
index 58cbf5b..2b294ce 100644
--- a/charts/templates/nais.io_applications.yaml
+++ b/charts/templates/nais.io_applications.yaml
@@ -555,8 +555,9 @@ spec:
                       type: object
                     type: array
                   sqlInstances:
-                    description: Provision database instances and connect them to
-                      your application.
+                    description: |-
+                      Provision database instances and connect them to your application.
+                      Only one item allowed in the list.
                     items:
                       properties:
                         autoBackupHour:
@@ -576,8 +577,9 @@ spec:
                           description: Sort order for `ORDER BY ...` clauses.
                           type: string
                         databases:
-                          description: List of databases that should be created on
-                            this Postgres server.
+                          description: |-
+                            List of one database or less(!) that should be created on this Postgres server.
+                            If not present, a default database with the same name as the application will be created.
                           items:
                             properties:
                               envVarPrefix:
diff --git a/charts/templates/nais.io_naisjobs.yaml b/charts/templates/nais.io_naisjobs.yaml
index 77a1bbf..86f264a 100644
--- a/charts/templates/nais.io_naisjobs.yaml
+++ b/charts/templates/nais.io_naisjobs.yaml
@@ -516,8 +516,9 @@ spec:
                       type: object
                     type: array
                   sqlInstances:
-                    description: Provision database instances and connect them to
-                      your application.
+                    description: |-
+                      Provision database instances and connect them to your application.
+                      Only one item allowed in the list.
                     items:
                       properties:
                         autoBackupHour:
@@ -537,8 +538,9 @@ spec:
                           description: Sort order for `ORDER BY ...` clauses.
                           type: string
                         databases:
-                          description: List of databases that should be created on
-                            this Postgres server.
+                          description: |-
+                            List of one database or less(!) that should be created on this Postgres server.
+                            If not present, a default database with the same name as the application will be created.
                           items:
                             properties:
                               envVarPrefix:
diff --git a/config/crd/bases/nais.io_applications.yaml b/config/crd/bases/nais.io_applications.yaml
index 58cbf5b..2b294ce 100644
--- a/config/crd/bases/nais.io_applications.yaml
+++ b/config/crd/bases/nais.io_applications.yaml
@@ -555,8 +555,9 @@ spec:
                       type: object
                     type: array
                   sqlInstances:
-                    description: Provision database instances and connect them to
-                      your application.
+                    description: |-
+                      Provision database instances and connect them to your application.
+                      Only one item allowed in the list.
                     items:
                       properties:
                         autoBackupHour:
@@ -576,8 +577,9 @@ spec:
                           description: Sort order for `ORDER BY ...` clauses.
                           type: string
                         databases:
-                          description: List of databases that should be created on
-                            this Postgres server.
+                          description: |-
+                            List of one database or less(!) that should be created on this Postgres server.
+                            If not present, a default database with the same name as the application will be created.
                           items:
                             properties:
                               envVarPrefix:
diff --git a/config/crd/bases/nais.io_naisjobs.yaml b/config/crd/bases/nais.io_naisjobs.yaml
index 77a1bbf..86f264a 100644
--- a/config/crd/bases/nais.io_naisjobs.yaml
+++ b/config/crd/bases/nais.io_naisjobs.yaml
@@ -516,8 +516,9 @@ spec:
                       type: object
                     type: array
                   sqlInstances:
-                    description: Provision database instances and connect them to
-                      your application.
+                    description: |-
+                      Provision database instances and connect them to your application.
+                      Only one item allowed in the list.
                     items:
                       properties:
                         autoBackupHour:
@@ -537,8 +538,9 @@ spec:
                           description: Sort order for `ORDER BY ...` clauses.
                           type: string
                         databases:
-                          description: List of databases that should be created on
-                            this Postgres server.
+                          description: |-
+                            List of one database or less(!) that should be created on this Postgres server.
+                            If not present, a default database with the same name as the application will be created.
                           items:
                             properties:
                               envVarPrefix:
diff --git a/pkg/apis/nais.io/v1/naiserator_types.go b/pkg/apis/nais.io/v1/naiserator_types.go
index 27a6601..a6160a9 100644
--- a/pkg/apis/nais.io/v1/naiserator_types.go
+++ b/pkg/apis/nais.io/v1/naiserator_types.go
@@ -132,6 +132,7 @@ type GCP struct {
 	// +nais:doc:Availability=GCP
 	Buckets []CloudStorageBucket `json:"buckets,omitempty"`
 	// Provision database instances and connect them to your application.
+	// Only one item allowed in the list.
 	// +nais:doc:Link="https://doc.nais.io/persistence/postgres/";"https://cloud.google.com/sql/docs/postgres/instance-settings#impact"
 	// +nais:doc:Availability=GCP
 	// +kubebuilder:validation:MaxItems=1
@@ -582,8 +583,8 @@ type CloudSqlInstance struct {
 	TransactionLogRetentionDays *int `json:"transactionLogRetentionDays,omitempty"`
 	// Desired maintenance window for database updates.
 	Maintenance *Maintenance `json:"maintenance,omitempty"`
-	// List of databases that should be created on this Postgres server.
-	// +kubebuilder:validation:Required
+	// List of one database or less(!) that should be created on this Postgres server.
+	// If not present, a default database with the same name as the application will be created.
 	// +kubebuilder:validation:MaxItems=1
 	Databases []CloudSqlDatabase `json:"databases,omitempty"`
 	// Remove the entire Postgres server including all data when the Kubernetes resource is deleted.