diff --git a/tests/data/test719 b/tests/data/test719
index 3ccdee38ae..9aea9f08d5 100644
--- a/tests/data/test719
+++ b/tests/data/test719
@@ -32,6 +32,7 @@ Funny-head: yesyes
 <client>
 <features>
 ipv6
+proxy
 </features>
 <server>
 http
diff --git a/tests/data/test720 b/tests/data/test720
index 786d83552f..59dfeed4ea 100644
--- a/tests/data/test720
+++ b/tests/data/test720
@@ -30,6 +30,9 @@ Funny-head: yesyes
 #
 # Client-side
 <client>
+<features>
+proxy
+</features>
 <server>
 http
 socks5
diff --git a/tests/data/test721 b/tests/data/test721
index 8af61dabfb..3092eaac69 100644
--- a/tests/data/test721
+++ b/tests/data/test721
@@ -30,6 +30,9 @@ Funny-head: yesyes
 #
 # Client-side
 <client>
+<features>
+proxy
+</features>
 <server>
 http
 socks5