diff --git a/R/api_gdalcubes.R b/R/api_gdalcubes.R
index afd24ae2..3f403956 100644
--- a/R/api_gdalcubes.R
+++ b/R/api_gdalcubes.R
@@ -477,15 +477,15 @@
     .check_set_caller(".gc_regularize")
     # require gdalcubes package
     .check_require_packages("gdalcubes")
-
     # prepare temp_output_dir
     temp_output_dir <- file.path(output_dir, ".sits")
     if (!dir.exists(temp_output_dir)) {
         dir.create(temp_output_dir, recursive = TRUE)
     }
+    # set to delete all files in temp dir
+    on.exit(unlink(list.files(temp_output_dir, full.names = TRUE)), add = TRUE)
     # timeline of intersection
     timeline <- .gc_get_valid_timeline(cube, period = period)
-
     # filter only intersecting tiles
     if (.has(roi)) {
         cube <- .cube_filter_spatial(cube, roi = roi)
@@ -502,8 +502,7 @@
     )
     # start processes
     .parallel_start(workers = multicores)
-    on.exit(.parallel_stop())
-
+    on.exit(.parallel_stop(), add = TRUE)
     # does a local cube exist
     local_cube <- tryCatch(
         {
diff --git a/R/sits_regularize.R b/R/sits_regularize.R
index 492987c6..f1645de4 100644
--- a/R/sits_regularize.R
+++ b/R/sits_regularize.R
@@ -127,7 +127,9 @@ sits_regularize.raster_cube <- function(cube, ...,
     output_dir <- .file_path_expand(output_dir)
     .check_output_dir(output_dir)
     # check for ROI and tiles
-    .check_roi_tiles(roi, tiles)
+    if (!is.null(roi) || !is.null(tiles)) {
+        .check_roi_tiles(roi, tiles)
+    }
     # check multicores
     .check_num_parameter(multicores, min = 1, max = 2048)
     # check progress