diff --git a/ol2/tt_ctrl/build.py b/ol2/tt_ctrl/build.py
index 76d0aa7..5c01ead 100755
--- a/ol2/tt_ctrl/build.py
+++ b/ol2/tt_ctrl/build.py
@@ -64,7 +64,7 @@ class CtrlFlow(SequentialFlow):
 		Checker.WireLength,
 		OpenROAD.FillInsertion,
 		OpenROAD.RCX,
-		OpenROAD.STAPostPNR,
+#		OpenROAD.STAPostPNR,
 		OpenROAD.IRDropReport,
 		Magic.StreamOut,
 		Magic.WriteLEF,