diff --git a/blockcheck.sh b/blockcheck.sh
index 66802d88..8bea6c5d 100755
--- a/blockcheck.sh
+++ b/blockcheck.sh
@@ -219,7 +219,7 @@ doh_resolve()
 	# $1 - ip version 4/6
 	# $2 - hostname
 	# $3 - doh server URL. use $DOH_SERVER if empty
-	$MDIG --family=$1 --dns-make-query=$2 | $CURL --max-time $CURL_MAX_TIME_DOH -s --data-binary @- -H "Content-Type: application/dns-message" "${3:-$DOH_SERVER}" | $MDIG --dns-parse-query
+	"$MDIG" --family=$1 --dns-make-query=$2 | $CURL --max-time $CURL_MAX_TIME_DOH -s --data-binary @- -H "Content-Type: application/dns-message" "${3:-$DOH_SERVER}" | "$MDIG" --dns-parse-query
 }
 doh_find_working()
 {