diff --git a/web/viewer-snippet-chrome-extension.html b/web/viewer-snippet-chrome-extension.html
index e97f2f62c..0dd0af3f7 100644
--- a/web/viewer-snippet-chrome-extension.html
+++ b/web/viewer-snippet-chrome-extension.html
@@ -1,4 +1,4 @@
-<!-- This snippet is used in the Chrome extension, see Makefile -->
+<!-- This snippet is used in the Chromium extension (included from viewer.html) -->
 <base href="/content/web/">
 <link rel="resource" type="application/l10n" href="locale/locale.properties">
 <script type="text/javascript" src="l10n.js"></script>
diff --git a/web/viewer-snippet-firefox-extension.html b/web/viewer-snippet-firefox-extension.html
index 83f10cf55..d53a3f7ec 100644
--- a/web/viewer-snippet-firefox-extension.html
+++ b/web/viewer-snippet-firefox-extension.html
@@ -1,4 +1,4 @@
-<!-- This snippet is used in firefox extension, see Makefile -->
+<!-- This snippet is used in the Firefox extension (included from viewer.html) -->
 <base href="resource://pdf.js/web/" />
 <script type="text/javascript" src="l10n.js"></script>
 <script type="text/javascript" src="../build/pdf.js"></script>
diff --git a/web/viewer-snippet-minified.html b/web/viewer-snippet-minified.html
index 0d011d3de..60c14981c 100644
--- a/web/viewer-snippet-minified.html
+++ b/web/viewer-snippet-minified.html
@@ -1,3 +1,3 @@
-<!-- This snippet is used in production, see Makefile -->
+<!-- This snippet is used in production (included from viewer.html) -->
 <link rel="resource" type="application/l10n" href="locale/locale.properties"/>
 <script type="text/javascript" src="pdf.viewer.js"></script>
diff --git a/web/viewer-snippet.html b/web/viewer-snippet.html
index d528a9d8a..47c8a8b14 100644
--- a/web/viewer-snippet.html
+++ b/web/viewer-snippet.html
@@ -1,4 +1,4 @@
-<!-- This snippet is used in production, see Makefile -->
+<!-- This snippet is used in production (included from viewer.html) -->
 <link rel="resource" type="application/l10n" href="locale/locale.properties"/>
 <script type="text/javascript" src="l10n.js"></script>
 <script type="text/javascript" src="../build/pdf.js"></script>