diff --git a/test/e2e/framework/framework.go b/test/e2e/framework/framework.go
index 821cc69087..c81442154f 100644
--- a/test/e2e/framework/framework.go
+++ b/test/e2e/framework/framework.go
@@ -183,6 +183,7 @@ func (f *Framework) BeforeEach() {
 		Expect(err).NotTo(HaveOccurred())
 		cachedDiscoClient := cacheddiscovery.NewMemCacheClient(discoClient)
 		restMapper := discovery.NewDeferredDiscoveryRESTMapper(cachedDiscoClient, meta.InterfacesForUnstructured)
+		restMapper.Reset()
 		resolver := scaleclient.NewDiscoveryScaleKindResolver(cachedDiscoClient)
 		f.ScalesGetter = scaleclient.New(restClient, restMapper, dynamic.LegacyAPIPathResolverFunc, resolver)
 
diff --git a/test/e2e/scalability/load.go b/test/e2e/scalability/load.go
index 6e15dbc880..9bb6f311df 100644
--- a/test/e2e/scalability/load.go
+++ b/test/e2e/scalability/load.go
@@ -384,6 +384,7 @@ func createClients(numberOfClients int) ([]clientset.Interface, []internalclient
 		}
 		cachedDiscoClient := cacheddiscovery.NewMemCacheClient(discoClient)
 		restMapper := discovery.NewDeferredDiscoveryRESTMapper(cachedDiscoClient, meta.InterfacesForUnstructured)
+		restMapper.Reset()
 		resolver := scaleclient.NewDiscoveryScaleKindResolver(cachedDiscoClient)
 		scalesClients[i] = scaleclient.New(restClient, restMapper, dynamic.LegacyAPIPathResolverFunc, resolver)
 	}