diff --git a/build.html b/build.html
index 6393d16f5..39292a1ca 100644
--- a/build.html
+++ b/build.html
@@ -2,7 +2,7 @@
 <html>
 
 <head>
-<title>TDLib build instructions</title>
+<title>TDLight build instructions</title>
 <style>
 .hide { display: none; }
 div.main { max-width:1200px; margin: auto; font-size: x-large; }
@@ -14,7 +14,7 @@ select.large { font-size: large; }
 
 <div class="main">
   <div id="languageSelectDiv" style="text-align:center;">
-    <p>Choose a programming language, from which you want to use TDLib:</p>
+    <p>Choose a programming language, from which you want to use TDLight:</p>
     <select id="languageSelect" onchange="onLanguageChanged(false)" autofocus class="large">
       <option>Choose a programming language:</option>
       <option>Python</option>
@@ -45,7 +45,7 @@ select.large { font-size: large; }
   </div>
 
   <div id="osSelectDiv" class="hide" style="text-align:center;">
-    <p>Choose an operating system, on which you want to use TDLib:</p>
+    <p>Choose an operating system, on which you want to use TDLight:</p>
     <select id="osSelect" onchange="onOsChanged()" class="large">
       <option>Choose an operating system:</option>
     </select>
@@ -53,7 +53,7 @@ select.large { font-size: large; }
   </div>
 
   <div id="linuxSelectDiv" class="hide" style="text-align:center;">
-    <p>Choose a Linux distro, on which you want to use TDLib:</p>
+    <p>Choose a Linux distro, on which you want to use TDLight:</p>
     <select id="linuxSelect" onchange="onOsChanged()" class="large">
       <option>Choose a Linux distro:</option>
       <option>Alpine</option>
@@ -81,13 +81,13 @@ select.large { font-size: large; }
     </div>
 
     <div id="buildInstallLocalDiv" class="hide">
-      <label><input type="checkbox" id="buildInstallLocalCheckbox" onchange="onOptionsChanged()"/>Install built TDLib to /usr/local instead of placing the files to td/tdlib.</label>
+      <label><input type="checkbox" id="buildInstallLocalCheckbox" onchange="onOptionsChanged()"/>Install built TDLight to /usr/local instead of placing the files to td/tdlib.</label>
     </div>
 
     <p></p>
 
     <div id="buildCompilerDiv" class="hide">
-      <span>Choose which compiler you want to use to build TDLib:</span><br>
+      <span>Choose which compiler you want to use to build TDLight:</span><br>
       <label><input type="radio" id="buildCompilerRadioGcc" name="buildCompilerRadio" onchange="onOptionsChanged()" checked/>g++</label>
       <label><input type="radio" id="buildCompilerRadioClang" name="buildCompilerRadio" onchange="onOptionsChanged()"/>clang (recommended)</label>
       <p></p>
@@ -116,7 +116,7 @@ select.large { font-size: large; }
     </div>
 
     <div id="buildBitnessDiv" class="hide">
-      <span>Choose for which bitness you want to build TDLib:</span><br>
+      <span>Choose for which bitness you want to build TDLight:</span><br>
       <label><input type="radio" id="buildBitnessRadio32" name="buildBitnessRadio" onchange="onOptionsChanged()" checked/>32</label>
       <label><input type="radio" id="buildBitnessRadio64" name="buildBitnessRadio" onchange="onOptionsChanged()"/>64</label>
       <p></p>
@@ -138,7 +138,7 @@ select.large { font-size: large; }
   </div>
 
   <div id="buildCommandsDiv" class="hide" style="text-align:left;">
-    <p id="buildCommandsHeader" style="text-align:center;">Here is complete instruction for TDLib binaries building:</p>
+    <p id="buildCommandsHeader" style="text-align:center;">Here is complete instruction for TDLight binaries building:</p>
     <p id="buildPre">Hidden text</p>
     <code id="buildCommands">Empty commands</code>
   </div>
@@ -321,17 +321,17 @@ function onOsChanged() {
   if (language === 'Other') {
     language = 'any other programming language';
   }
-  var text = 'TDLib can be used from ' + language + ' on ' + os + ' through the ' + getTargetName(target) + ' interface.<br>' +
+  var text = 'TDLight can be used from ' + language + ' on ' + os + ' through the ' + getTargetName(target) + ' interface.<br>' +
              'See <a href="https://github.com/tdlight-team/tdlight/blob/master/example/README.md#' + getExampleAnchor(language) + '">examples</a> of such usage and already available third-party frameworks.<br>';
 
   if (target === 'WebAssembly') {
-    text = 'TDLib is available in a prebuilt form as an <a href="https://www.npmjs.com/">NPM</a> package <a href="https://www.npmjs.com/package/tdweb">tdweb</a>.<br>' +
+    text = 'TDLight is available in a prebuilt form as an <a href="https://www.npmjs.com/">NPM</a> package <a href="https://www.npmjs.com/package/tdweb">tdweb</a>.<br>' +
            'If you want to build it manually, take a look at our <a href="https://github.com/tdlight-team/tdlight/tree/master/example/web">example</a>.';
     target = '';
   }
   if (target === 'Android') {
-    text = 'TDLib for Android is available in a prebuilt form and can be downloaded from <a href="https://core.telegram.org/tdlight-team/tdlightlib.zip">there</a>.<br>' +
-           'See <a href="https://github.com/tdlight-team/tdlight/issues/77#issuecomment-640719893">build instructions</a> if you want to build the latest TDLib version or want to build TDLib with different interface.';
+    text = 'TDLight for Android is available in a prebuilt form and can be downloaded from <a href="https://core.telegram.org/tdlight-team/tdlightlib.zip">there</a>.<br>' +
+           'See <a href="https://github.com/tdlight-team/tdlight/issues/77#issuecomment-640719893">build instructions</a> if you want to build the latest TDLight version or want to build TDLight with different interface.';
     target = '';
   }
   if (target === 'iOS') {
@@ -396,7 +396,7 @@ function onOptionsChanged() {
   if (os_linux || os_freebsd || os_netbsd) {
     low_memory = document.getElementById('buildLowMemoryCheckbox').checked;
     document.getElementById('buildLowMemoryText').innerHTML = 'I have less than ' + (use_clang ? '1.5' : '3.5') +' GB of RAM.' +
-            (low_memory ? ' Now you will need only ' + (use_clang ? '0.5' : '1') +' GB of RAM to build TDLib.' : '');
+            (low_memory ? ' Now you will need only ' + (use_clang ? '0.5' : '1') +' GB of RAM to build TDLight.' : '');
     document.getElementById('buildLowMemoryDiv').style.display = 'block';
   } else {
     if (os_openbsd) {
@@ -530,7 +530,7 @@ function onOptionsChanged() {
     pre_text.push('Install Git, ' + compiler + ', make, CMake >= 3.0.2, OpenSSL-dev, zlib-dev, gperf, PHP' + jdk + ' using your package manager.');
   }
   if (os_linux && os.includes('Node.js')) {
-    pre_text.push('Note that for Node.js &le; 9.11.2 you must build TDLib with OpenSSL 1.0.* and for Node.js &ge; 10 with OpenSSL 1.1.* instead, so you may need to modify the following commands to install a proper OpenSSL version.');
+    pre_text.push('Note that for Node.js &le; 9.11.2 you must build TDLight with OpenSSL 1.0.* and for Node.js &ge; 10 with OpenSSL 1.1.* instead, so you may need to modify the following commands to install a proper OpenSSL version.');
   }
   if (os_freebsd) {
     pre_text.push('Note that the following instruction is for FreeBSD 11.');
@@ -565,7 +565,7 @@ function onOptionsChanged() {
   if (os_windows) {
     pre_text.push('Close and re-open ' + terminal_name + ' if the PATH environment variable was changed.');
   }
-  pre_text.push('Run these commands in ' + terminal_name + ' to build TDLib and to install it to ' + install_dir + ':');
+  pre_text.push('Run these commands in ' + terminal_name + ' to build TDLight and to install it to ' + install_dir + ':');
   document.getElementById('buildPre').innerHTML = '<ul><li>' + pre_text.join('</li><li>') + '</li></ul>';
   document.getElementById('buildPre').style.display = 'block';
 
