diff --git a/cli-tests/basic.sh b/cli-tests/basic.sh
index 213a4de..6f2a61a 100755
--- a/cli-tests/basic.sh
+++ b/cli-tests/basic.sh
@@ -25,9 +25,9 @@ trap "kill $pid; rm -rf $dir" EXIT
 
 sleep 3
 
-wget 127.0.0.1:5000 -O-
+wget -4 -O- 127.0.0.1:5000
 
-! wget 127.0.0.1:5000/nosuchurl -O-
+! wget -4 -O- 127.0.0.1:5000/nosuchurl
 
 # (
 #     wget 127.0.0.1:5000/nosuchurl -O-