diff --git a/kern/linux/linux_system.hh b/kern/linux/linux_system.hh
index 3b65e73790..6067629848 100644
--- a/kern/linux/linux_system.hh
+++ b/kern/linux/linux_system.hh
@@ -47,7 +47,6 @@ class LinuxSkipDelayLoopEvent;
 class LinuxSkipIdeDelay50msEvent;
 class LinuxPrintfEvent;
 class LinuxDebugPrintfEvent;
-class LinuxDumpMbufEvent;
 class FnEvent;
 class AlphaArguments;