diff --git a/sky130/magic/sky130.tech b/sky130/magic/sky130.tech
index d25895f..dc07d13 100644
--- a/sky130/magic/sky130.tech
+++ b/sky130/magic/sky130.tech
@@ -1808,7 +1808,8 @@
 # FOM and POLY fill
 #---------------------------------------------------
  templayer	fomfill_pass1 topbox
-        slots   0 4080 1320 0 4080 1320 1360 0
+        # slots   0 4080 1320 0 4080 1320 1360 0
+        slots   0 4080 1600 0 4080 1600 1360 0
         and-not obstruct_fom
 	and	topbox
         shrink  2035