diff --git a/VERSION b/VERSION
index 44b743e..3dbd46e 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.0.287
+1.0.288
diff --git a/common/staging_install.py b/common/staging_install.py
index 5c32223..1a88dee 100755
--- a/common/staging_install.py
+++ b/common/staging_install.py
@@ -539,7 +539,7 @@
     # file "sources.txt" with the name of the source directories for each
     # install directory.
 
-    if link_from not in ['source', None]:
+    if link_from == 'source':
         print('Replacing files with symbolic links to source where possible.')
         for refdir in refdirs:
             if ef_format:
diff --git a/sky130/magic/sky130.tech b/sky130/magic/sky130.tech
index b05db4b..86140a8 100644
--- a/sky130/magic/sky130.tech
+++ b/sky130/magic/sky130.tech
@@ -5427,6 +5427,7 @@
 # defaultperimeter   allpolynonfet active   57
 
  defaultsidewall    *poly active  22.6
+ defaultoverlap	    *poly active dnwell,isosub	     dwell 55.27
  defaultareacap     *poly active nwell,obswell,pwell well  106.13
  defaultperimeter   *poly active nwell,obswell,pwell well  55.27
  defaultsideoverlap *poly active nwell,obswell,pwell well  55.27