diff --git a/boards/uniboard1/libraries/unb1_board/src/tcl/COMMON_NODE_ddr_II_rec_pins.tcl b/boards/uniboard1/libraries/unb1_board/src/tcl/COMMON_NODE_ddr_II_rec_pins.tcl
index 1fce43cb02a15178c31cd50dc52971008bf5a566..fc37c780421552f88b1a38d36a7f875898ba5cfa 100644
--- a/boards/uniboard1/libraries/unb1_board/src/tcl/COMMON_NODE_ddr_II_rec_pins.tcl
+++ b/boards/uniboard1/libraries/unb1_board/src/tcl/COMMON_NODE_ddr_II_rec_pins.tcl
@@ -168,8 +168,8 @@ set_instance_assignment -name IO_STANDARD "SSTL-15 CLASS I" -to MB_II_OU[0].ba[0
 set_instance_assignment -name IO_STANDARD "SSTL-15 CLASS I" -to MB_II_OU[0].ba[1]
 set_instance_assignment -name IO_STANDARD "SSTL-15 CLASS I" -to MB_II_OU[0].ba[2]
 set_instance_assignment -name IO_STANDARD "SSTL-15 CLASS I" -to MB_II_OU[0].cas_n
-set_instance_assignment -name IO_STANDARD "DIFFERENTIAL 1.5-V SSTL CLASS I" -to MB_II_IO[0].ck[0]
-set_instance_assignment -name IO_STANDARD "DIFFERENTIAL 1.5-V SSTL CLASS I" -to MB_II_IO[0].ck[1]
+set_instance_assignment -name IO_STANDARD "DIFFERENTIAL 1.5-V SSTL CLASS I" -to MB_II_OU[0].ck[0]
+set_instance_assignment -name IO_STANDARD "DIFFERENTIAL 1.5-V SSTL CLASS I" -to MB_II_OU[0].ck[1]
 set_instance_assignment -name IO_STANDARD "SSTL-15 CLASS I" -to MB_II_OU[0].cke[0]
 set_instance_assignment -name IO_STANDARD "SSTL-15 CLASS I" -to MB_II_OU[0].cke[1]
 set_instance_assignment -name IO_STANDARD "SSTL-15 CLASS I" -to MB_II_OU[0].dm[0]
diff --git a/boards/uniboard1/libraries/unb1_board/src/tcl/COMMON_NODE_ddr_I_rec_pins.tcl b/boards/uniboard1/libraries/unb1_board/src/tcl/COMMON_NODE_ddr_I_rec_pins.tcl
index a500d35f2456600bb82750ec8f8e9caa5b484afe..1066eb3b23fe2ef82bcdfb2bd3cc712307582709 100644
--- a/boards/uniboard1/libraries/unb1_board/src/tcl/COMMON_NODE_ddr_I_rec_pins.tcl
+++ b/boards/uniboard1/libraries/unb1_board/src/tcl/COMMON_NODE_ddr_I_rec_pins.tcl
@@ -167,8 +167,8 @@ set_instance_assignment -name IO_STANDARD "SSTL-15 CLASS I" -to MB_I_OU[0].ba[0]
 set_instance_assignment -name IO_STANDARD "SSTL-15 CLASS I" -to MB_I_OU[0].ba[1]
 set_instance_assignment -name IO_STANDARD "SSTL-15 CLASS I" -to MB_I_OU[0].ba[2]
 set_instance_assignment -name IO_STANDARD "SSTL-15 CLASS I" -to MB_I_OU[0].cas_n
-set_instance_assignment -name IO_STANDARD "DIFFERENTIAL 1.5-V SSTL CLASS I" -to MB_I_IO[0].ck[0]
-set_instance_assignment -name IO_STANDARD "DIFFERENTIAL 1.5-V SSTL CLASS I" -to MB_I_IO[0].ck[1]
+set_instance_assignment -name IO_STANDARD "DIFFERENTIAL 1.5-V SSTL CLASS I" -to MB_I_OU[0].ck[0]
+set_instance_assignment -name IO_STANDARD "DIFFERENTIAL 1.5-V SSTL CLASS I" -to MB_I_OU[0].ck[1]
 set_instance_assignment -name IO_STANDARD "SSTL-15 CLASS I" -to MB_I_OU[0].cke[0]
 set_instance_assignment -name IO_STANDARD "SSTL-15 CLASS I" -to MB_I_OU[0].cke[1]
 set_instance_assignment -name IO_STANDARD "SSTL-15 CLASS I" -to MB_I_OU[0].dm[0]