1 files changed, 1 insertions, 0 deletions

diff --git a/arch/um/include/os.h b/arch/um/include/os.h
index 1897785fd571..a6d80721d3c4 100644
--- a/arch/um/include/os.h
+++ b/arch/um/include/os.h
@@ -227,6 +227,7 @@ extern int set_umid(char *name);
 extern char *get_umid(void);
 
 /* signal.c */
+extern void timer_init(void);
 extern void set_sigstack(void *sig_stack, int size);
 extern void remove_sigstack(void);
 extern void set_handler(int sig, void (*handler)(int), int flags, ...);