diff --git a/sky130/magic/sky130.tech b/sky130/magic/sky130.tech
index acfe41e..9a66a66 100644
--- a/sky130/magic/sky130.tech
+++ b/sky130/magic/sky130.tech
@@ -456,6 +456,10 @@
   allpad	padl
 
   psub		pwell
+
+  obstypes	obswell,obsactive,obsli,obsmcon,obsm1,obsm2,obsm3,obsm4,obsm5,obsmrdl,obscomment
+  idtypes	res0p35,res0p69,res1p41,res2p85,res5p73,pnp0p68,pnp3p40,npn1p00,npn2p00,npn11p0
+  blocktypes	fillblock,fillblock4
   
 end
 
@@ -5043,6 +5047,12 @@
  resist mrdl/metali		     5
 #endif (REDISTRIBUTION)
 
+ # These types should not be considered as electrical nodes
+ resist blocktypes	 	 None
+ resist obstypes	 	 None
+ resist idtypes	 	 	 None
+ resist comment	 	 	 None
+
  contact ndc,nsc		 15000
  contact pdc,psc		 15000
  contact mvndc,mvnsc		 15000