diff --git a/project_mirror.go b/project_mirror.go
index 129040ccb..b159a110c 100644
--- a/project_mirror.go
+++ b/project_mirror.go
@@ -40,6 +40,7 @@ type ProjectMirror struct {
 	LastSuccessfulUpdateAt *time.Time `json:"last_successful_update_at"`
 	LastUpdateAt           *time.Time `json:"last_update_at"`
 	LastUpdateStartedAt    *time.Time `json:"last_update_started_at"`
+	MirrorBranchRegex      string     `json:"mirror_branch_regex"`
 	OnlyProtectedBranches  bool       `json:"only_protected_branches"`
 	KeepDivergentRefs      bool       `json:"keep_divergent_refs"`
 	UpdateStatus           string     `json:"update_status"`
@@ -107,6 +108,7 @@ func (s *ProjectMirrorService) GetProjectMirror(pid interface{}, mirror int, opt
 type AddProjectMirrorOptions struct {
 	URL                   *string `url:"url,omitempty" json:"url,omitempty"`
 	Enabled               *bool   `url:"enabled,omitempty" json:"enabled,omitempty"`
+	MirrorBranchRegex     *string `url:"mirror_branch_regex,omitempty" json:"mirror_branch_regex,omitempty"`
 	OnlyProtectedBranches *bool   `url:"only_protected_branches,omitempty" json:"only_protected_branches,omitempty"`
 	KeepDivergentRefs     *bool   `url:"keep_divergent_refs,omitempty" json:"keep_divergent_refs,omitempty"`
 }
@@ -142,9 +144,10 @@ func (s *ProjectMirrorService) AddProjectMirror(pid interface{}, opt *AddProject
 // GitLab API docs:
 // https://docs.gitlab.com/ee/api/remote_mirrors.html#update-a-remote-mirrors-attributes
 type EditProjectMirrorOptions struct {
-	Enabled               *bool `url:"enabled,omitempty" json:"enabled,omitempty"`
-	OnlyProtectedBranches *bool `url:"only_protected_branches,omitempty" json:"only_protected_branches,omitempty"`
-	KeepDivergentRefs     *bool `url:"keep_divergent_refs,omitempty" json:"keep_divergent_refs,omitempty"`
+	Enabled               *bool   `url:"enabled,omitempty" json:"enabled,omitempty"`
+	MirrorBranchRegex     *string `url:"mirror_branch_regex,omitempty" json:"mirror_branch_regex,omitempty"`
+	OnlyProtectedBranches *bool   `url:"only_protected_branches,omitempty" json:"only_protected_branches,omitempty"`
+	KeepDivergentRefs     *bool   `url:"keep_divergent_refs,omitempty" json:"keep_divergent_refs,omitempty"`
 }
 
 // EditProjectMirror updates a project team member to a specified access level..