diff --git a/R_lib/kin_r_library.R b/R_lib/kin_r_library.R
index 247a0c807..e350ac35e 100644
--- a/R_lib/kin_r_library.R
+++ b/R_lib/kin_r_library.R
@@ -47,12 +47,12 @@ master_init <- function(setup) {
   setup$timesteps <- setup$timesteps
   setup$simulation_time <- 0
 
-  if (!(exists("setup$store_result"))) {
+  if (is.null(setup[["store_result"]])) {
     setup$store_result <- TRUE
   }
 
   if (setup$store_result) {
-    if (!(exists("setup$out_save"))) {
+    if (is.null(setup[["out_save"]])) {
       setup$out_save <- seq(1, setup$iterations)
     }
   }
diff --git a/bench/dolo_diffu_inner/CMakeLists.txt b/bench/dolo_diffu_inner/CMakeLists.txt
index e406effdf..633c71a11 100644
--- a/bench/dolo_diffu_inner/CMakeLists.txt
+++ b/bench/dolo_diffu_inner/CMakeLists.txt
@@ -1,5 +1,6 @@
 install(FILES
     dolo_diffu_inner.R
+    dolo_diffu_inner_large.R
     dolo_inner.pqi
 DESTINATION
     share/poet/bench