diff --git a/artiq/examples/kasli_sawgmaster/repository/sines_urukul_sayma.py b/artiq/examples/kasli_sawgmaster/repository/sines_urukul_sayma.py
index 2ba4bb21b..318a6e1ab 100644
--- a/artiq/examples/kasli_sawgmaster/repository/sines_urukul_sayma.py
+++ b/artiq/examples/kasli_sawgmaster/repository/sines_urukul_sayma.py
@@ -17,7 +17,7 @@ class SinesUrukulSayma(EnvExperiment):
         for urukul_ch in self.urukul_chs:
             delay(1*ms)
             urukul_ch.init()
-            urukul_ch.set(9*MHz)
+            urukul_ch.set(9*MHz, amplitude=0.5)
             urukul_ch.set_att(6.)
             urukul_ch.sw.on()