diff --git a/boards/uniboard2/libraries/unb2_board/quartus/pinning/unb2_minimal_pins.tcl b/boards/uniboard2/libraries/unb2_board/quartus/pinning/unb2_minimal_pins.tcl
index c8ce39a3c5cca28a6f45d719af2eaa77400c0eb9..3876ecee02c11cdbff63288e6bddd029999c430e 100644
--- a/boards/uniboard2/libraries/unb2_board/quartus/pinning/unb2_minimal_pins.tcl
+++ b/boards/uniboard2/libraries/unb2_board/quartus/pinning/unb2_minimal_pins.tcl
@@ -5,6 +5,10 @@ set_location_assignment PIN_N12 -to ETH_CLK
 set_location_assignment PIN_K14 -to PPS
 set_location_assignment PIN_J14 -to "PPS(n)"
 
+# enable 100 ohm termination:
+set_instance_assignment -name XCVR_A10_RX_TERM_SEL R_R1 -to CLK
+set_instance_assignment -name XCVR_A10_RX_TERM_SEL R_R1 -to PPS
+
 #set_location_assignment PIN_AT33 -to CFG_DATA[0]
 #set_location_assignment PIN_AT32 -to CFG_DATA[1]
 #set_location_assignment PIN_BB33 -to CFG_DATA[2]