diff --git a/documentation/ref-manual/ref-variables.xml b/documentation/ref-manual/ref-variables.xml
index a4f67fefe8..ca926db1b2 100644
--- a/documentation/ref-manual/ref-variables.xml
+++ b/documentation/ref-manual/ref-variables.xml
@@ -2260,7 +2260,7 @@ meta/conf/machine/include/<architecture>/arch-<architecture>.inc
                 <para>
                     The date the build was started.
                     Dates appear using the year, month, and day (YMD) format
-                    (e.g. "20150209" for February 9th and 2015).
+                    (e.g. "20150209" for February 9th, 2015).
                 </para>
             </glossdef>
         </glossentry>