diff --git a/applications/apertif/designs/apertif_unb1_correlator/hdllib.cfg b/applications/apertif/designs/apertif_unb1_correlator/hdllib.cfg
index 7392d039206477b249e30f79340e78e7fb4986f1..59564951ef804fb4566b8f6758fddc4333ae478e 100644
--- a/applications/apertif/designs/apertif_unb1_correlator/hdllib.cfg
+++ b/applications/apertif/designs/apertif_unb1_correlator/hdllib.cfg
@@ -38,4 +38,5 @@ quartus_vhdl_files =
 quartus_qip_files =
     $HDL_BUILD_DIR/unb1/quartus/apertif_unb1_correlator/qsys_apertif_unb1_correlator/synthesis/qsys_apertif_unb1_correlator.qip
 
-    
\ No newline at end of file
+quartus_sdc_files =
+    $RADIOHDL/boards/uniboard1/libraries/unb1_board/quartus/unb1_board.sdc    
diff --git a/applications/apertif/designs/apertif_unb1_fn_bf_emu/hdllib.cfg b/applications/apertif/designs/apertif_unb1_fn_bf_emu/hdllib.cfg
index 258be17c4389f1efe2ce2544f94acf759afa5766..d188f6b120929274d536ba46a1033a3ab74ba2c6 100644
--- a/applications/apertif/designs/apertif_unb1_fn_bf_emu/hdllib.cfg
+++ b/applications/apertif/designs/apertif_unb1_fn_bf_emu/hdllib.cfg
@@ -34,4 +34,5 @@ quartus_qip_files =
 modelsim_search_libraries =                                                                                            
     altera_ver lpm_ver sgate_ver altera_mf_ver altera_lnsim_ver stratixiv_ver stratixiv_hssi_ver stratixiv_pcie_hip_ver
     altera     lpm     sgate     altera_mf     altera_lnsim     stratixiv     stratixiv_hssi     stratixiv_pcie_hip    
-
+quartus_sdc_files =
+    $RADIOHDL/boards/uniboard1/libraries/unb1_board/quartus/unb1_board.sdc