diff --git a/fml/conf/mcp.cfg b/fml/conf/mcp.cfg
index 70c825e4a..ff488e358 100644
--- a/fml/conf/mcp.cfg
+++ b/fml/conf/mcp.cfg
@@ -96,7 +96,7 @@ ClassPathClient = %(DirLib)s/,%(DirLib)s/*,%(DirJars)s/bin/minecraft.jar,%(DirJa
 ClassPathServer = %(DirLib)s/,%(DirLib)s/*,%(DirJars)s/minecraft_server.jar
 ClientFixes     = %(DirConf)s/patches
 FixStart        = Start
-IgnorePkg       = paulscode,com/jcraft,isom,ibxm,de/matthiasmann/twl,org/xmlpull,javax/xml,com/fasterxml,javax/ws
+IgnorePkg       = paulscode,com/jcraft,isom,ibxm,de/matthiasmann/twl,org/xmlpull,javax/xml,com/fasterxml,javax/ws,org/bouncycastle,argo
 
 [REOBF]
 MD5Client         = %(DirTemp)s/client.md5