diff --git a/src/main/scala/lc/Main.scala b/src/main/scala/lc/Main.scala
index 131cca7..d011e96 100644
--- a/src/main/scala/lc/Main.scala
+++ b/src/main/scala/lc/Main.scala
@@ -34,6 +34,7 @@ class Captcha(throttle: Int) {
                     "FontFunCaptcha" -> new FontFunCaptcha,
                     "GifCaptcha" -> new GifCaptcha,
                     "ShadowTextCaptcha" -> new ShadowTextCaptcha,
+                    "RainDropsCaptcha" -> new RainDropsCP,
                     "LabelCaptcha" -> new LabelCaptcha)
 
   def getProvider(): String = {