diff --git a/acme.sh b/acme.sh
index f0a82353..1313d4f8 100755
--- a/acme.sh
+++ b/acme.sh
@@ -5713,9 +5713,9 @@ install() {
     LE_WORKING_DIR="$DEFAULT_INSTALL_HOME"
   fi
 
-  _nocron="$1"
+  _nocron="${NOCRON:-$1}"
   _c_home="$2"
-  _noprofile="$3"
+  _noprofile="${NOPROFILE:-$3}"
   if ! _initpath; then
     _err "Install failed."
     return 1
@@ -5723,6 +5723,9 @@ install() {
   if [ "$_nocron" ]; then
     _debug "Skip install cron job"
   fi
+  if [ "$_noprofile" ]; then
+    _debug "Skip install aliases"
+  fi
 
   if [ "$ACME_IN_CRON" != "1" ]; then
     if ! _precheck "$_nocron"; then