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-rw-r--r--freebsd/sys/sys/kernel.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/freebsd/sys/sys/kernel.h b/freebsd/sys/sys/kernel.h
index 9b5aa856..83122c99 100644
--- a/freebsd/sys/sys/kernel.h
+++ b/freebsd/sys/sys/kernel.h
@@ -66,7 +66,7 @@ extern int stathz; /* statistics clock's frequency */
extern int profhz; /* profiling clock's frequency */
extern int profprocs; /* number of process's profiling */
#ifndef __rtems__
-extern int ticks;
+extern volatile int ticks;
#else /* __rtems__ */
#include <rtems/score/watchdogimpl.h>
#define ticks _Watchdog_Ticks_since_boot