diff --git a/pym/cl_builder.py b/pym/cl_builder.py
index 305be8b..b3446c9 100644
--- a/pym/cl_builder.py
+++ b/pym/cl_builder.py
@@ -257,7 +257,8 @@ class cl_builder(color_print):
         distrPath = distr.convertToDirectory().getDirectory()
         self.cleanNeedlessKernelData(distrPath)
 
-        if self.assembleIso:
+        if self.assembleIso and \
+            self.clVars.Get('os_builder_profile').endswith('binary'):
             self.printMessageForTest(_("Updating calculate overlay"))
             updateLayman = self.runChroot(distrPath,"layman -s calculate")
             self.printByResult(updateLayman.success())