diff --git a/pkg/apis/cert/v1alpha1/types.go b/pkg/apis/cert/v1alpha1/types.go
index 34056755b..6b63c019b 100644
--- a/pkg/apis/cert/v1alpha1/types.go
+++ b/pkg/apis/cert/v1alpha1/types.go
@@ -96,7 +96,7 @@ type IssuerRef struct {
 	Namespace string `json:"namespace,omitempty"`
 }
 
-// PrivateKeyAlgorithm is the type for the algorithm
+// PrivateKeyAlgorithm is the type for the algorithm.
 // +kubebuilder:validation:Enum=RSA;ECDSA
 type PrivateKeyAlgorithm string
 
@@ -108,7 +108,7 @@ const (
 	ECDSAKeyAlgorithm PrivateKeyAlgorithm = "ECDSA"
 )
 
-// PrivateKeySize is the size for the algorithm
+// PrivateKeySize is the size for the algorithm.
 // +kubebuilder:validation:Enum=256;384;2048;3072;4096
 type PrivateKeySize int32
 
@@ -202,7 +202,7 @@ type QualifiedIssuerRef struct {
 	Namespace string `json:"namespace"`
 }
 
-// IsDefaultCluster returns true if the reference is on the default cluster
+// IsDefaultCluster returns true if the reference is on the default cluster.
 func (r QualifiedIssuerRef) IsDefaultCluster() bool {
 	return r.Cluster == "default"
 }
diff --git a/pkg/cert/legobridge/certificate.go b/pkg/cert/legobridge/certificate.go
index 4802daf99..d03faca3e 100644
--- a/pkg/cert/legobridge/certificate.go
+++ b/pkg/cert/legobridge/certificate.go
@@ -148,7 +148,7 @@ func obtainForDomains(client *lego.Client, domains []string, input ObtainInput)
 	return client.Certificate.Obtain(request)
 }
 
-// ToKeyType extracts the key type from the
+// ToKeyType extracts the key type from the private key spec.
 func ToKeyType(privateKeySpec *api.CertificatePrivateKey) (certcrypto.KeyType, error) {
 	keyType := certcrypto.RSA2048
 	if privateKeySpec != nil {
@@ -189,7 +189,7 @@ func ToKeyType(privateKeySpec *api.CertificatePrivateKey) (certcrypto.KeyType, e
 	return keyType, nil
 }
 
-// FromKeyType converts key type back to
+// FromKeyType converts key type back to a private key spec.
 func FromKeyType(keyType certcrypto.KeyType) *api.CertificatePrivateKey {
 	switch keyType {
 	case certcrypto.RSA2048:
@@ -270,7 +270,7 @@ func (o *obtainer) Obtain(input ObtainInput) error {
 	}
 }
 
-// Obtain starts the async obtain request.
+// ObtainACME starts the async obtain request.
 func (o *obtainer) ObtainACME(input ObtainInput) error {
 	err := o.setPending(input)
 	if err != nil {