# Node ID 2a878a2f4f3edb44b47bdff587a75da46d8504cd
# Parent  6a17f0a6bd2ee93e5076cfb3018291bfb4617d0d
diff --git a/configs/example/fs.py b/configs/example/fs.py
--- a/configs/example/fs.py
+++ b/configs/example/fs.py
@@ -199,7 +199,8 @@
     drive_sys.voltage_domain = VoltageDomain(voltage = options.sys_voltage)
 
     # Create a source clock for the system and set the clock period
-    drive_sys.clk_domain = SrcClockDomain(clock =  options.sys_clock)
+    drive_sys.clk_domain = SrcClockDomain(clock =  options.sys_clock,
+                                      voltage_domain = drive_sys.voltage_domain)
 
     # Create a CPU voltage domain
     drive_sys.cpu_voltage_domain = VoltageDomain()