diff --git a/doc/manual/installation/prerequisites-source.xml b/doc/manual/installation/prerequisites-source.xml
index 7311e4885..49660c36e 100644
--- a/doc/manual/installation/prerequisites-source.xml
+++ b/doc/manual/installation/prerequisites-source.xml
@@ -10,14 +10,14 @@
 
   <listitem><para>GNU Make.</para></listitem>
 
-  <listitem><para>A version of GCC or Clang that supports C++11.</para></listitem>
+  <listitem><para>A version of GCC or Clang that supports C++14.</para></listitem>
 
   <listitem><para><command>pkg-config</command> to locate
   dependencies.  If your distribution does not provide it, you can get
   it from <link
   xlink:href="http://www.freedesktop.org/wiki/Software/pkg-config"
   />.</para></listitem>
-  
+
   <listitem><para>The OpenSSL library to calculate cryptographic hashes.
   If your distribution does not provide it, you can get it from <link
   xlink:href="https://www.openssl.org"/>.</para></listitem>