diff --git a/pkg/cmd/pr/shared/finder.go b/pkg/cmd/pr/shared/finder.go
index b1fec267e..e4a70eb22 100644
--- a/pkg/cmd/pr/shared/finder.go
+++ b/pkg/cmd/pr/shared/finder.go
@@ -548,7 +548,7 @@ func (m *mockFinder) Find(opts FindOptions) (*api.PullRequest, ghrepo.Interface,
 	if m.expectSelector != opts.Selector {
 		return nil, nil, fmt.Errorf("mockFinder: expected selector %q, got %q", m.expectSelector, opts.Selector)
 	}
-	if len(m.expectFields) > 0 && !IsEqualSet(m.expectFields, opts.Fields) {
+	if len(m.expectFields) > 0 && !isEqualSet(m.expectFields, opts.Fields) {
 		return nil, nil, fmt.Errorf("mockFinder: expected fields %v, got %v", m.expectFields, opts.Fields)
 	}
 	if m.called {
@@ -568,7 +568,7 @@ func (m *mockFinder) ExpectFields(fields []string) {
 	m.expectFields = fields
 }
 
-func IsEqualSet(a, b []string) bool {
+func isEqualSet(a, b []string) bool {
 	if len(a) != len(b) {
 		return false
 	}
diff --git a/pkg/cmd/pr/shared/lister.go b/pkg/cmd/pr/shared/lister.go
index 004f726d5..454ecbfcf 100644
--- a/pkg/cmd/pr/shared/lister.go
+++ b/pkg/cmd/pr/shared/lister.go
@@ -183,7 +183,7 @@ func (m *mockLister) List(opt ListOptions) (*api.PullRequestAndTotalCount, error
 
 	if m.expectFields != nil {
 
-		if !IsEqualSet(m.expectFields, opt.Fields) {
+		if !isEqualSet(m.expectFields, opt.Fields) {
 			return nil, fmt.Errorf("unexpected fields: %v", opt.Fields)
 		}
 	}