1 files changed, 1 insertions, 1 deletions

diff --git a/documentation/dev-manual/dev-manual-start.xml b/documentation/dev-manual/dev-manual-start.xml
index c4296bd4c5..997ae035cd 100644
--- a/documentation/dev-manual/dev-manual-start.xml
+++ b/documentation/dev-manual/dev-manual-start.xml
@@ -69,7 +69,7 @@
                 in the Yocto Project Reference Manual and the wiki page at
                 <ulink url='&YOCTO_WIKI_URL;/wiki/Distribution_Support'>Distribution Support</ulink>.</para>
                 <para>
-                You should also have about 100 gigabytes of free disk space for building images.
+                You should also have about 50 Gbytes of free disk space for building images.
                 </para></listitem>
             <listitem><para><emphasis>Packages:</emphasis>  The OpenEmbedded build system
                 requires that certain packages exist on your development system (e.g. Python 2.6 or 2.7).