diff --git a/openapi3filter/validate_readonly_test.go b/openapi3filter/validate_readonly_test.go
index d78c5fb24..8ef19d8ac 100644
--- a/openapi3filter/validate_readonly_test.go
+++ b/openapi3filter/validate_readonly_test.go
@@ -73,7 +73,7 @@ func TestValidatingRequestBodyWithReadOnlyProperty(t *testing.T) {
 	router, err := legacyrouter.NewRouter(doc)
 	require.NoError(t, err)
 
-	err = l.CompileSchemas()
+	err = sl.CompileSchemas()
 	require.NoError(t, err)
 
 	b, err := json.Marshal(Request{ID: "bt6kdc3d0cvp6u8u3ft0"})