diff --git a/pkg/endpoints/installer.go b/pkg/endpoints/installer.go
index 63d217062..2c4d7b957 100644
--- a/pkg/endpoints/installer.go
+++ b/pkg/endpoints/installer.go
@@ -1080,11 +1080,13 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
 	if categoriesProvider, ok := storage.(rest.CategoriesProvider); ok {
 		apiResource.Categories = categoriesProvider.Categories()
 	}
-	singularNameProvider, ok := storage.(rest.SingularNameProvider)
-	if !ok {
-		return nil, nil, fmt.Errorf("resource %s must implement SingularNameProvider", resource)
+	if !isSubresource {
+		singularNameProvider, ok := storage.(rest.SingularNameProvider)
+		if !ok {
+			return nil, nil, fmt.Errorf("resource %s must implement SingularNameProvider", resource)
+		}
+		apiResource.SingularName = singularNameProvider.GetSingularName()
 	}
-	apiResource.SingularName = singularNameProvider.GetSingularName()
 
 	if gvkProvider, ok := storage.(rest.GroupVersionKindProvider); ok {
 		gvk := gvkProvider.GroupVersionKind(a.group.GroupVersion)