diff --git a/zedboard-fpga-design/src/zedboard.xdc b/zedboard-fpga-design/src/zedboard.xdc
index a97226d..8ea29a3 100644
--- a/zedboard-fpga-design/src/zedboard.xdc
+++ b/zedboard-fpga-design/src/zedboard.xdc
@@ -75,8 +75,8 @@ set_property PACKAGE_PIN AB12 [get_ports OLED_SCLK]
 set_property IOSTANDARD LVCMOS33 [get_ports OLED_SCLK]
 set_property PACKAGE_PIN AA12 [get_ports OLED_SDIN]
 set_property IOSTANDARD LVCMOS33 [get_ports OLED_SDIN]
-set_property PULLTYPE PULLUP [get_ports OLED_SDIN]
+set_property PULLUP TRUE [get_ports OLED_SDIN]
 
 # TTC0 Wave Out
 set_property PACKAGE_PIN W12 [get_ports {TTC0_WAVEOUT}]
-set_property IOSTANDARD LVCMOS33 [get_ports {TTC0_WAVEOUT}]
\ No newline at end of file
+set_property IOSTANDARD LVCMOS33 [get_ports {TTC0_WAVEOUT}]