diff --git a/docs/configuration/environment-variables.md b/docs/configuration/environment-variables.md
index d0c7c7c7c..6d8b266a5 100644
--- a/docs/configuration/environment-variables.md
+++ b/docs/configuration/environment-variables.md
@@ -114,6 +114,7 @@ The following list config variables have special meaning and can be set in a var
 | `DOKKU_DOCKERFILE_ENTRYPOINT`  | dockerfile entrypoint           | `dokku config:set`                                                                                                                               | |
 | `DOKKU_DOCKERFILE_PORTS`       | dockerfile ports                | `dokku config:set`                                                                                                                               | |
 | `DOKKU_DOCKERFILE_START_CMD`   | none                            | `dokku config:set`                                                                                                                               | |
+| `DOKKU_PARALLEL_ARGUMENTS`.    | none                            | `dokku config:set`                                                                                                                               | Allows passing custom arguments to parallel for `ps:*all` commands |
 | `DOKKU_PROXY_PORT`             | automatically assigned          | `dokku config:set`                                                                                                                               | |
 | `DOKKU_PROXY_SSL_PORT`         | automatically assigned          | `dokku config:set`                                                                                                                               | |
 | `DOKKU_PROXY_PORT_MAP`         | automatically assigned          | `dokku proxy:ports-add` <br /> `dokku proxy:ports-remove`, `dokku proxy:ports-clear`                                                             | |
diff --git a/plugins/ps/internal-functions b/plugins/ps/internal-functions
index e18661e07..dc816f641 100755
--- a/plugins/ps/internal-functions
+++ b/plugins/ps/internal-functions
@@ -139,10 +139,10 @@ fn-ps-parallel-cmd() {
     GNU_PARALLEL=$(parallel -V 2>&1 | grep GNU || true)
     if [[ -z "$GNU_PARALLEL" ]]; then
       # shellcheck disable=SC2046
-      parallel -i bash -c "dokku ps:${CMD} {}" -- $(dokku_apps)
+      parallel $DOKKU_PARALLEL_ARGUMENTS -i bash -c "dokku ps:${CMD} {}" -- $(dokku_apps)
     else
       # shellcheck disable=SC2046
-      dokku_apps | parallel "dokku ps:${CMD} {}"
+      dokku_apps | parallel $DOKKU_PARALLEL_ARGUMENTS "dokku ps:${CMD} {}"
     fi
     return
   fi