diff --git a/app/srv/api/deploy.ts b/app/srv/api/deploy.ts
index 0ecd4d78..fce709a6 100644
--- a/app/srv/api/deploy.ts
+++ b/app/srv/api/deploy.ts
@@ -18,7 +18,7 @@ export const _ = {
 <html lang="en">
 <head>
 <meta charset="UTF-8">
-<meta name="viewport" content="width=device-width, initial-scale=1.0">
+<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=1.0, minimum-scale=1.0, maximum-scale=1.0">
 <title></title>
 <link rel="stylesheet" href="https://prasi.app/index.css">
 </head>
diff --git a/app/web/public/index.html b/app/web/public/index.html
index 50125740..0df51867 100644
--- a/app/web/public/index.html
+++ b/app/web/public/index.html
@@ -3,7 +3,8 @@
 
 <head>
   <meta charset="UTF-8">
-  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <meta name="viewport"
+    content="width=device-width, initial-scale=1.0, user-scalable=1.0, minimum-scale=1.0, maximum-scale=1.0">
   <title>Prasi: App Builder</title>
   <link rel="stylesheet" href="/index.css">
   <script>window.__REACT_DEVTOOLS_GLOBAL_HOOK__ = { isDisabled: true };</script>
diff --git a/pkgs/core/build-site.ts b/pkgs/core/build-site.ts
index f1a63d72..fd9e9d8a 100644
--- a/pkgs/core/build-site.ts
+++ b/pkgs/core/build-site.ts
@@ -41,7 +41,7 @@ await writeAsync(
 <html lang="en">
 <head>
   <meta charset="UTF-8">
-  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=1.0, minimum-scale=1.0, maximum-scale=1.0">
   <title></title>
   <link rel="stylesheet" href="https://prasi.app/index.css">
 </head>
