diff --git a/src/types.jl b/src/types.jl
index 9503c2d..325d671 100644
--- a/src/types.jl
+++ b/src/types.jl
@@ -4,7 +4,7 @@ struct BIO_Method ptr end
 struct SSL_Context ptr end
 
 mutable struct SSLContext <: IO
-    data
+    data::Vector{UInt8}
     ptr::Ptr{SSL_Context}
 
     "Construct the SSLContext object, initializing its relatvie SSL_Context
@@ -18,6 +18,7 @@ mutable struct SSLContext <: IO
             # TODO: check error stack and report the right exception
             throw(ErrorException("Could not create SSL context"))
 	end
+        ssl_context.data = UInt8[]
 	ssl_context
     end
 end
@@ -36,7 +37,7 @@ mutable struct SSLClient{T}
         client = new{T}()
         client.context = ctx
         client.ssl = SSL_new(ctx)
-        client.io_on_read = (data) -> nothing
+        client.io_on_read = (data) -> append!(client.context.data, data)
         SSL_accept_state(client)
         set_bio!(client, bio_new(), bio_new())
         client.write_buf = UInt8[]