diff --git a/artiq/gateware/targets/metlino.py b/artiq/gateware/targets/metlino.py
index 999bfaaf6..65e3c2f0c 100755
--- a/artiq/gateware/targets/metlino.py
+++ b/artiq/gateware/targets/metlino.py
@@ -53,6 +53,8 @@ class Master(MiniSoC, AMPSoC):
         platform = self.platform
         rtio_clk_freq = 150e6
 
+        self.comb += platform.request("input_clk_sel").eq(1)
+        self.comb += platform.request("filtered_clk_sel").eq(1)
         self.submodules.si5324_rst_n = gpio.GPIOOut(platform.request("si5324").rst_n)
         self.csr_devices.append("si5324_rst_n")
         i2c = self.platform.request("i2c")