diff --git a/errors.go b/errors.go
index cedd178..981a9a0 100644
--- a/errors.go
+++ b/errors.go
@@ -4,4 +4,5 @@ import "errors"
 
 var (
 	ErrEncKeyNotFound = errors.New("encryption key not found")
+	ErrIssuerNotFound = errors.New("issuer not found")
 )
diff --git a/pki.go b/pki.go
index ad0ff13..31f1fda 100644
--- a/pki.go
+++ b/pki.go
@@ -1,5 +1,12 @@
 package vault
 
+import (
+	"errors"
+	"github.com/hashicorp/vault/api"
+	"net/http"
+	"strings"
+)
+
 type PKI struct {
 	Service
 }
@@ -252,7 +259,7 @@ func (k *PKI) ReadIssuer(issuerName string) (*PKIReadIssuerResponse, error) {
 		}, response, nil,
 	)
 	if err != nil {
-		return nil, err
+		return nil, k.mapError(err)
 	}
 
 	return response, nil
@@ -287,3 +294,16 @@ func (k *PKI) RevokeIssuer(issuerName string) (*PKIRevokeIssuerResponse, error)
 
 	return response, nil
 }
+
+func (k *PKI) mapError(err error) error {
+	resErr := &api.ResponseError{}
+	if errors.As(err, &resErr) {
+		if resErr.StatusCode == http.StatusInternalServerError {
+			if strings.Contains(err.Error(), "unable to find PKI issuer for reference") {
+				return ErrIssuerNotFound
+			}
+		}
+	}
+
+	return err
+}