diff --git a/doc/manual/getting_started_core.rst b/doc/manual/getting_started_core.rst
index aefc29a5b..7bdae5e9a 100644
--- a/doc/manual/getting_started_core.rst
+++ b/doc/manual/getting_started_core.rst
@@ -114,7 +114,7 @@ Instead, inside the core device, output timing is generated by the gateware and
 
 Try reducing the period of the generated waveform until the CPU cannot keep up with the generation of switching events and the underflow exception is raised. Then try catching it: ::
 
-    from artiq.coredevice.exceptions import RTIOUnderflow
+    from artiq.experiment import *
 
 
     def print_underflow():