diff --git a/sky130/Makefile.in b/sky130/Makefile.in
index f07db8f..af7e6c7 100644
--- a/sky130/Makefile.in
+++ b/sky130/Makefile.in
@@ -338,6 +338,7 @@
 	${CPP} ${SKY130A_DEFS} openlane/sky130_fd_sc_hd/config.tcl > ${OPENLANE_STAGING_A}/sky130_fd_sc_hd/config.tcl
 	${CPP} ${SKY130A_DEFS} openlane/sky130_fd_sc_hd/tracks.info > ${OPENLANE_STAGING_A}/sky130_fd_sc_hd/tracks.info
 	${CPP} ${SKY130A_DEFS} openlane/sky130_fd_sc_hd/no_synth.cells > ${OPENLANE_STAGING_A}/sky130_fd_sc_hd/no_synth.cells
+	${CPP} ${SKY130A_DEFS} openlane/sky130_fd_sc_hd/tribuff_map.v > ${OPENLANE_STAGING_A}/sky130_fd_sc_hd/tribuff_map.v 
 	${CPP} ${SKY130A_DEFS} openlane/sky130_fd_sc_hs/config.tcl > ${OPENLANE_STAGING_A}/sky130_fd_sc_hs/config.tcl
 	${CPP} ${SKY130A_DEFS} openlane/sky130_fd_sc_hs/tracks.info > ${OPENLANE_STAGING_A}/sky130_fd_sc_hs/tracks.info
 	${CPP} ${SKY130A_DEFS} openlane/sky130_fd_sc_hs/no_synth.cells > ${OPENLANE_STAGING_A}/sky130_fd_sc_hs/no_synth.cells
diff --git a/sky130/openlane/config.tcl b/sky130/openlane/config.tcl
index 723ec2a..9aebeb3 100755
--- a/sky130/openlane/config.tcl
+++ b/sky130/openlane/config.tcl
@@ -67,6 +67,9 @@
 # Latch mapping
 set ::env(SYNTH_LATCH_MAP) "$::env(PDK_ROOT)/$::env(PDK)/libs.tech/openlane/$::env(STD_CELL_LIBRARY)/latch_map.v"
 
+# Tri-state buffer mapping
+set ::env(TRISTATE_BUFFER_MAP) "$::env(PDK_ROOT)/$::env(PDK)/libs.tech/openlane/$::env(STD_CELL_LIBRARY)/tribuff_map.v"
+
 set ::env(GLB_RT_L1_ADJUSTMENT) 0.99
 
 # Extra PDN configs