diff --git a/lib/ax25/encoder/encoder.rb b/lib/ax25/encoder/encoder.rb
index 23e2062c3ee88744ab849da542d9bd77d2f21fd3..001cc07218e91d5a0d129e0a3955c6534de7c4d3 100644
--- a/lib/ax25/encoder/encoder.rb
+++ b/lib/ax25/encoder/encoder.rb
@@ -4,6 +4,6 @@ module Ax25
   module Encoder
     include Abstractify::Abstract
 
-    abstract :write_interface, :read_interface, :connect, :close
+    abstract :write_interface, :read_interface, :connect, :close, :read, :write
   end
 end