diff --git a/json-rpc-shell.c b/json-rpc-shell.c
index 33321d7..7ce8db6 100644
--- a/json-rpc-shell.c
+++ b/json-rpc-shell.c
@@ -2924,7 +2924,7 @@ json_rpc_call_raw (struct app_context *ctx,
 	if (error)
 		return error;
 
-	maybe_print_verbose (ctx, ATTR_INCOMING, buf->str, buf->len);
+	maybe_print_verbose (ctx, ATTR_INCOMING, buf->str, buf->len + 1);
 	return NULL;
 }