diff --git a/pkg/manifest/manifest.go b/pkg/manifest/manifest.go
index d3e20d1c15..d4082ce86b 100644
--- a/pkg/manifest/manifest.go
+++ b/pkg/manifest/manifest.go
@@ -40,6 +40,7 @@ func init() {
 			knownFeatureSets.Insert(string(featureSet))
 		}
 	}
+	knownFeatureSets.Insert(string(configv1.CustomNoUpgrade))
 }
 
 // resourceId uniquely identifies a Kubernetes resource.
diff --git a/pkg/manifest/manifest_test.go b/pkg/manifest/manifest_test.go
index 106a2446f5..0fbb02936f 100644
--- a/pkg/manifest/manifest_test.go
+++ b/pkg/manifest/manifest_test.go
@@ -688,7 +688,7 @@ func Test_include(t *testing.T) {
 				"include.release.openshift.io/self-managed-high-availability": "true",
 				"release.openshift.io/feature-set":                            "Other",
 			},
-			expected: fmt.Errorf("unrecognized value \"Other\" in release.openshift.io/feature-set=Other; known values are: Default,DevPreviewNoUpgrade,TechPreviewNoUpgrade"),
+			expected: fmt.Errorf("unrecognized value \"Other\" in release.openshift.io/feature-set=Other; known values are: CustomNoUpgrade,Default,DevPreviewNoUpgrade,TechPreviewNoUpgrade"),
 		},
 		{
 			name:               "incorrect techpreview value is not excluded if techpreview on using feature-set",
@@ -698,7 +698,7 @@ func Test_include(t *testing.T) {
 				"include.release.openshift.io/self-managed-high-availability": "true",
 				"release.openshift.io/feature-set":                            "Other",
 			},
-			expected: fmt.Errorf("unrecognized value \"Other\" in release.openshift.io/feature-set=Other; known values are: Default,DevPreviewNoUpgrade,TechPreviewNoUpgrade"),
+			expected: fmt.Errorf("unrecognized value \"Other\" in release.openshift.io/feature-set=Other; known values are: CustomNoUpgrade,Default,DevPreviewNoUpgrade,TechPreviewNoUpgrade"),
 		},
 		{
 			name:        "default profile selection excludes without annotation",