diff --git a/src/common/execio.h b/src/common/execio.h
--- a/src/common/execio.h
+++ b/src/common/execio.h
@@ -37,6 +37,8 @@ struct execio
 {
   int pipe_write;
   int pipe_read;
+
+  enum execio_state state;
   
   pid_t child;
 };