diff --git a/src/utils.js b/src/utils.js
index 5d3084d..790268e 100644
--- a/src/utils.js
+++ b/src/utils.js
@@ -1 +1 @@
-export const isStateLess = Component => !Component.prototype.render
+export const isStateLess = Component => !Component.prototype || !Component.prototype.render