diff --git a/Demos/Device/ClassDriver/MIDI/MIDI.c b/Demos/Device/ClassDriver/MIDI/MIDI.c
index f627d55bed..bfeeaa38ed 100644
--- a/Demos/Device/ClassDriver/MIDI/MIDI.c
+++ b/Demos/Device/ClassDriver/MIDI/MIDI.c
@@ -184,8 +184,6 @@ void EVENT_USB_Device_ConfigurationChanged(void)
 
 	ConfigSuccess &= MIDI_Device_ConfigureEndpoints(&Keyboard_MIDI_Interface);
 
-	USB_Device_EnableSOFEvents();
-
 	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 }
 
diff --git a/Demos/Device/ClassDriver/MassStorage/MassStorage.c b/Demos/Device/ClassDriver/MassStorage/MassStorage.c
index a8f21f173f..94f9f84152 100644
--- a/Demos/Device/ClassDriver/MassStorage/MassStorage.c
+++ b/Demos/Device/ClassDriver/MassStorage/MassStorage.c
@@ -114,8 +114,6 @@ void EVENT_USB_Device_ConfigurationChanged(void)
 
 	ConfigSuccess &= MS_Device_ConfigureEndpoints(&Disk_MS_Interface);
 
-	USB_Device_EnableSOFEvents();
-
 	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 }