diff --git a/libboard_zynq/src/clocks/source.rs b/libboard_zynq/src/clocks/source.rs
index 6c547d1..296a2ef 100644
--- a/libboard_zynq/src/clocks/source.rs
+++ b/libboard_zynq/src/clocks/source.rs
@@ -12,6 +12,8 @@ pub const PS_CLK: u32 = 33_333_333;
 pub const PS_CLK: u32 = 33_333_333;
 #[cfg(feature = "target_kasli_soc")]
 pub const PS_CLK: u32 = 33_333_333;
+#[cfg(feature = "target_pynqz2")]
+pub const PS_CLK: u32 = 50_000_000;
 
 /// (pll_fdiv_max, (pll_cp, pll_res, lock_cnt))
 const PLL_FDIV_LOCK_PARAM: &[(u16, (u8, u8, u16))] = &[