diff --git a/pym/cl_builder.py b/pym/cl_builder.py
index c05b1f5..ac2b774 100644
--- a/pym/cl_builder.py
+++ b/pym/cl_builder.py
@@ -629,10 +629,12 @@ class cl_builder(color_print):
                           'cl_assemble_path')).encode('utf-8'),True)
         linuxver = _toUNICODE(envData.getVar(newprofile,
                           'os_assemble_linux_ver')).encode('utf-8')
-        if not linuxver:
+        if linuxver:
+            self.clVars.Set('os_builder_linux_ver',linuxver ,True)
+        else:
             curdate = datetime.now()
             linuxver =  "%04d%02d%02d"%(curdate.year,curdate.month,curdate.day)
-        self.clVars.Set('os_builder_linux_ver',linuxver ,True)
+            self.clVars.Set('os_builder_linux_build',linuxver ,True)
         return True
 
     def createPackageList(self,chrootdir,filename):
diff --git a/pym/cl_fill_builder.py b/pym/cl_fill_builder.py
index 3008787..34405f2 100644
--- a/pym/cl_fill_builder.py
+++ b/pym/cl_fill_builder.py
@@ -339,7 +339,8 @@ class fillVars(object, varsShare):
         if paths:
             return path.join(paths[0],"%(shortname)s-%(ver)s-%(march)s.iso"%
                  {'shortname':self.Get('os_builder_linux_shortname').lower(),
-                  'ver':self.Get('os_builder_linux_ver'),
+                  'ver':self.Get('os_builder_linux_build') or 
+                        self.Get('os_builder_linux_ver'),
                   'march':self.Get('os_builder_arch_machine')})
         return ""
 
diff --git a/pym/cl_vars_builder.py b/pym/cl_vars_builder.py
index b3b46b0..9bfa419 100644
--- a/pym/cl_vars_builder.py
+++ b/pym/cl_vars_builder.py
@@ -109,6 +109,9 @@ class Data:
     # build system ver
     os_builder_linux_ver = {'mode':'r'}
 
+    # build system build
+    os_builder_linux_build = {'mode':'r','value':''}
+
     # build system arch
     os_builder_arch_machine = {}