diff --git a/anonstream/templates/captcha.html b/anonstream/templates/captcha.html
index 6a6058b..0894b4e 100644
--- a/anonstream/templates/captcha.html
+++ b/anonstream/templates/captcha.html
@@ -2,6 +2,7 @@
 <html>
 <head>
   <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <meta http-equiv="content-security-policy" content="default-src 'none'; img-src 'self'; style-src 'nonce-{{ csp }}';">
   <style nonce="{{ csp }}">
     body {
diff --git a/anonstream/templates/error.html b/anonstream/templates/error.html
index e8fb936..7880e95 100644
--- a/anonstream/templates/error.html
+++ b/anonstream/templates/error.html
@@ -2,6 +2,7 @@
 <html>
 <head>
   <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <title>{{ error.code }} {{ error.name }}</title>
   <style>
     body {
