diff --git a/tool/release.sh b/tool/release.sh
index 4ab4809e7a..d467d8f24b 100755
--- a/tool/release.sh
+++ b/tool/release.sh
@@ -5,6 +5,11 @@
 #   tool/release.sh 3.0.0-rc1
 
 EXTS='.tar.gz .tar.xz .zip'
+if [[ -n $AWS_ACCESS_KEY_ID ]]; then
+  AWS_CLI_OPTS=""
+else
+  AWS_CLI_OPTS="--profile ruby"
+fi
 
 ver=$1
 if [[ $ver =~ ^([1-9]\.[0-9])\.([0-9]|[1-9][0-9]|0-(preview[1-9]|rc[1-9]))$ ]]; then
@@ -18,5 +23,5 @@ short=${BASH_REMATCH[1]}
 echo $ver
 echo $short
 for ext in $EXTS; do
-  aws s3 cp s3://ftp.r-l.o/pub/tmp/ruby-$ver-draft$ext s3://ftp.r-l.o/pub/ruby/$short/ruby-$ver$ext
+  aws $AWS_CLI_OPTS s3 cp s3://ftp.r-l.o/pub/tmp/ruby-$ver-draft$ext s3://ftp.r-l.o/pub/ruby/$short/ruby-$ver$ext
 done