diff --git a/artiq/examples/phaser/repository/demo.py b/artiq/examples/phaser/repository/demo.py
index 221016904..ac61956a3 100644
--- a/artiq/examples/phaser/repository/demo.py
+++ b/artiq/examples/phaser/repository/demo.py
@@ -14,7 +14,7 @@ class SAWGTest(EnvExperiment):
 
     @kernel
     def run(self):
-        self.core.break_realtime()
+        self.core.reset()
         self.ttl_sma.output()
 
         while True:
diff --git a/artiq/examples/phaser/repository/demo_2tone.py b/artiq/examples/phaser/repository/demo_2tone.py
index 5bcfe9962..f15026ab3 100644
--- a/artiq/examples/phaser/repository/demo_2tone.py
+++ b/artiq/examples/phaser/repository/demo_2tone.py
@@ -14,7 +14,7 @@ class SAWGTest(EnvExperiment):
 
     @kernel
     def run(self):
-        self.core.break_realtime()
+        self.core.reset()
         self.ttl_sma.output()
 
         while True: