diff --git a/bin/probe_saml_idp.sh b/bin/probe_saml_idp.sh
index f2fd081..ebfe567 100755
--- a/bin/probe_saml_idp.sh
+++ b/bin/probe_saml_idp.sh
@@ -324,7 +324,7 @@ fi
 #####################################################################
 
 # get entity metadata
-entityDescriptor=$( getEntityFromServer -d "$tmp_dir" -u "$MDQ_BASE_URL" $entityID )
+entityDescriptor=$( getEntityFromServer -T "$tmp_dir" -u "$MDQ_BASE_URL" $entityID )
 exit_status=$?
 if [ "$exit_status" -ne 0 ]; then
 	echo "ERROR: $script_name: unable to obtain metadata for entityID: $entityID" >&2
diff --git a/lib/md_tools.sh b/lib/md_tools.sh
index f6b85d6..9b90219 100755
--- a/lib/md_tools.sh
+++ b/lib/md_tools.sh
@@ -107,7 +107,7 @@ getEntityFromFile () {
 #######################################################################
 # Get entity metadata from a Metadata Query Server.
 #
-# Usage: getEntityFromServer -d TMP_DIR -u MDQ_BASE_URL ID
+# Usage: getEntityFromServer -T TMP_DIR -u MDQ_BASE_URL ID
 #
 # A temporary file containing the HTTP response is created in TMP_DIR.
 #
@@ -134,9 +134,9 @@ getEntityFromServer () {
 	local opt
 	local OPTARG
 	local OPTIND
-	while getopts ":d:u:" opt; do
+	while getopts ":T:u:" opt; do
 		case $opt in
-			d)
+			T)
 				tmp_dir="$OPTARG"
 				;;
 			u)