diff --git a/lldb/www/build.html b/lldb/www/build.html
index 8637689dc5b8..c07a82300643 100755
--- a/lldb/www/build.html
+++ b/lldb/www/build.html
@@ -80,7 +80,7 @@
                 <p>So for example, on a Fedora system one might run:</p>
                 <code>&gt; yum install swig python-devel libedit-devel</code>
                 <p>On an Ubuntu system one might run:</p>
-                <code>&gt; sudo apt-get install swig python-dev libedit-dev </code>
+                <code>&gt; sudo apt-get install build-essential subversion swig python-dev libedit-dev </code>
                 <h2 >Building LLDB</h2>
                 <p>We first need to checkout the source trees into the appropriate locations.  Both
                 Clang and LLDB build as subprojects of LLVM.  This means we will be checking out