diff --git a/boards/uniboard1/libraries/unb1_board/quartus/unb1_board.sdc b/boards/uniboard1/libraries/unb1_board/quartus/unb1_board.sdc
index 312dc9f89943e0517c3362a6cd94178e9c15cd09..4a0102e4308056c3705379c039b5da0a0352d076 100644
--- a/boards/uniboard1/libraries/unb1_board/quartus/unb1_board.sdc
+++ b/boards/uniboard1/libraries/unb1_board/quartus/unb1_board.sdc
@@ -48,6 +48,9 @@ set_clock_groups -asynchronous -group [get_clocks *u_sopc|altpll_0|sd1|pll7|clk[
 set_clock_groups -asynchronous -group [get_clocks *u_sopc|altpll_0|sd1|pll7|clk[2]]
 set_clock_groups -asynchronous -group [get_clocks *u_sopc|altpll_0|sd1|pll7|clk[3]]
 
+# QSYS, second PLL
+set_clock_groups -asynchronous -group [get_clocks *|altpll_1|sd1|pll7|clk[0]]
+
 set_clock_groups -asynchronous -group [get_clocks CLK]
 set_clock_groups -asynchronous -group [get_clocks {*|altpll_component|auto_generated|pll1|clk[0]}]
 set_clock_groups -asynchronous -group [get_clocks ADC_BI_A_CLK]