1 files changed, 3 insertions, 0 deletions
diff --git a/src/context.h b/src/context.h
index 6818e7e4..6ab0154a 100644
--- a/src/context.h
+++ b/src/context.h
@@ -89,6 +89,9 @@ struct gpgme_context
   /* The running engine process.  */
   engine_t engine;
 
+  /* Engine's sub protocol.  */
+  gpgme_protocol_t sub_protocol;
+
   /* True if armor mode should be used.  */
   unsigned int use_armor : 1;