diff --git a/documentation/adt-manual/adt-manual.xml b/documentation/adt-manual/adt-manual.xml
index fc1bc803e2..82589cc101 100644
--- a/documentation/adt-manual/adt-manual.xml
+++ b/documentation/adt-manual/adt-manual.xml
@@ -58,7 +58,7 @@
             </revision>
             <revision>
                 <revnumber>1.4</revnumber>
-                <date>Sometime in 2013</date>
+                <date>April 2013</date>
                 <revremark>Released with the Yocto Project 1.4 Release.</revremark>
             </revision>
         </revhistory>
diff --git a/documentation/bsp-guide/bsp-guide.xml b/documentation/bsp-guide/bsp-guide.xml
index 57c84580e7..7c37a8578d 100644
--- a/documentation/bsp-guide/bsp-guide.xml
+++ b/documentation/bsp-guide/bsp-guide.xml
@@ -70,7 +70,7 @@
             </revision>
             <revision>
                 <revnumber>1.4</revnumber>
-                <date>Sometime in 2013</date>
+                <date>April 2013</date>
                 <revremark>Released with the Yocto Project 1.4 Release.</revremark>
             </revision>
         </revhistory>
diff --git a/documentation/dev-manual/dev-manual.xml b/documentation/dev-manual/dev-manual.xml
index 1a1c5e17e4..9daafd2471 100644
--- a/documentation/dev-manual/dev-manual.xml
+++ b/documentation/dev-manual/dev-manual.xml
@@ -48,7 +48,7 @@
             </revision>
             <revision>
                 <revnumber>1.4</revnumber>
-                <date>Sometime in 2013</date>
+                <date>April 2013</date>
                 <revremark>Released with the Yocto Project 1.4 Release.</revremark>
             </revision>
         </revhistory>
diff --git a/documentation/kernel-dev/kernel-dev.xml b/documentation/kernel-dev/kernel-dev.xml
index d040a10a45..42839836a0 100644
--- a/documentation/kernel-dev/kernel-dev.xml
+++ b/documentation/kernel-dev/kernel-dev.xml
@@ -33,7 +33,7 @@
         <revhistory>
             <revision>
                 <revnumber>1.4</revnumber>
-                <date>Sometime in 2013</date>
+                <date>April 2013</date>
                 <revremark>Released with the Yocto Project 1.4 Release.</revremark>
             </revision>
         </revhistory>
diff --git a/documentation/profile-manual/profile-manual.xml b/documentation/profile-manual/profile-manual.xml
index 02c55bce5c..8cd02dc652 100644
--- a/documentation/profile-manual/profile-manual.xml
+++ b/documentation/profile-manual/profile-manual.xml
@@ -33,7 +33,7 @@
         <revhistory>
             <revision>
                 <revnumber>1.4</revnumber>
-                <date>Sometime in 2013</date>
+                <date>April 2013</date>
                 <revremark>Released with the Yocto Project 1.4 Release.</revremark>
             </revision>
         </revhistory>
diff --git a/documentation/ref-manual/ref-manual.xml b/documentation/ref-manual/ref-manual.xml
index d93710bc39..6c98101885 100644
--- a/documentation/ref-manual/ref-manual.xml
+++ b/documentation/ref-manual/ref-manual.xml
@@ -64,7 +64,7 @@
             </revision>
             <revision>
                 <revnumber>1.4</revnumber>
-                <date>Sometime in 2013</date>
+                <date>April 2013</date>
                 <revremark>Released with the Yocto Project 1.4 Release.</revremark>
             </revision>
         </revhistory>