diff --git a/concat_test.go b/concat_test.go
index 9b127ac..e223c42 100644
--- a/concat_test.go
+++ b/concat_test.go
@@ -25,7 +25,7 @@ func TestConcat(t *testing.T) {
 			Method: "OPTIONS",
 			Code:   http.StatusOK,
 			ResHeader: map[string]string{
-				"Tus-Extension": "creation,creation-with-upload,creation-defer-length,concatenation",
+				"Tus-Extension": "creation,creation-with-upload,concatenation",
 			},
 		}).Run(handler, t)
 	})
diff --git a/options_test.go b/options_test.go
index 81b5170..2194035 100644
--- a/options_test.go
+++ b/options_test.go
@@ -20,7 +20,7 @@ func TestOptions(t *testing.T) {
 		(&httpTest{
 			Method: "OPTIONS",
 			ResHeader: map[string]string{
-				"Tus-Extension": "creation,creation-with-upload,creation-defer-length",
+				"Tus-Extension": "creation,creation-with-upload",
 				"Tus-Version":   "1.0.0",
 				"Tus-Resumable": "1.0.0",
 				"Tus-Max-Size":  "400",
diff --git a/terminate_test.go b/terminate_test.go
index 046141e..098d72c 100644
--- a/terminate_test.go
+++ b/terminate_test.go
@@ -24,7 +24,7 @@ func TestTerminate(t *testing.T) {
 			Method: "OPTIONS",
 			Code:   http.StatusOK,
 			ResHeader: map[string]string{
-				"Tus-Extension": "creation,creation-with-upload,creation-defer-length,termination",
+				"Tus-Extension": "creation,creation-with-upload,termination",
 			},
 		}).Run(handler, t)
 	})