diff --git a/boards/uniboard1/libraries/unb1_board/quartus/unb1_board.qsf b/boards/uniboard1/libraries/unb1_board/quartus/unb1_board.qsf
index 2c226111573a010f173aa1a63c72641d0ce5e581..4e2396ba38fcbc79523e9e1198763e271f1b2475 100644
--- a/boards/uniboard1/libraries/unb1_board/quartus/unb1_board.qsf
+++ b/boards/uniboard1/libraries/unb1_board/quartus/unb1_board.qsf
@@ -44,8 +44,6 @@ set_global_assignment -name STRATIXIII_CONFIGURATION_SCHEME "ACTIVE SERIAL"
 set_global_assignment -name USE_CONFIGURATION_DEVICE ON
 set_global_assignment -name STRATIXII_CONFIGURATION_DEVICE EPCS128
 
-# Timing constraints
-set_global_assignment -name SDC_FILE $::env(RADIOHDL)/boards/uniboard1/libraries/unb1_board/quartus/unb1_board.sdc
 
 # Pass compile stamps as generics (passed to top-level when $UNB_COMPILE_STAMPS is set)
 if { [info exists ::env(UNB_COMPILE_STAMPS) ] } {
diff --git a/boards/uniboard2/libraries/unb2_board/quartus/unb2_board.qsf b/boards/uniboard2/libraries/unb2_board/quartus/unb2_board.qsf
index 66076265594c62affcc8c4caadb3cd79773fabfb..239ec61cd0a92077ab11d0cc43ca7bc84140ad46 100644
--- a/boards/uniboard2/libraries/unb2_board/quartus/unb2_board.qsf
+++ b/boards/uniboard2/libraries/unb2_board/quartus/unb2_board.qsf
@@ -76,8 +76,6 @@ set_global_assignment -name ROUTER_TIMING_OPTIMIZATION_LEVEL MAXIMUM
 #set_global_assignment -name USE_CONFIGURATION_DEVICE ON
 #set_global_assignment -name STRATIXII_CONFIGURATION_DEVICE EPCS128
 
-# Timing constraints
-#set_global_assignment -name SDC_FILE $::env(RADIOHDL)/boards/uniboard2/libraries/unb2_board/quartus/unb2_board.sdc
 
 # Pass compile stamps as generics (passed to top-level when $UNB_COMPILE_STAMPS is set)
 if { [info exists ::env(UNB_COMPILE_STAMPS) ] } {