diff --git a/Makefile b/Makefile
index 361d2ec4..b05f7fb1 100644
--- a/Makefile
+++ b/Makefile
@@ -52,6 +52,7 @@ C_FILES += rtemsbsd/src/rtems-bsd-sysctlbyname.c
 C_FILES += rtemsbsd/src/rtems-bsd-sysctlnametomib.c
 C_FILES += rtemsbsd/src/rtems-bsd-uma.c
 C_FILES += rtemsbsd/src/rtems-bsd-taskqueue.c
+C_FILES += rtemsbsd/src/rtems-bsd-timeout.c
 C_FILES += rtemsbsd/src/rtems-bsd-timesupport.c
 C_FILES += rtemsbsd/src/rtems-bsd-newproc.c
 C_FILES += rtemsbsd/src/rtems-bsd-vm_glue.c
diff --git a/freebsd-to-rtems.py b/freebsd-to-rtems.py
index f6d4664d..e01bf903 100755
--- a/freebsd-to-rtems.py
+++ b/freebsd-to-rtems.py
@@ -547,6 +547,7 @@ rtems.addRTEMSSourceFiles(
 		'src/rtems-bsd-sysctlnametomib.c',
 		'src/rtems-bsd-uma.c',
 		'src/rtems-bsd-taskqueue.c',
+		'src/rtems-bsd-timeout.c',
 		'src/rtems-bsd-timesupport.c',
 		'src/rtems-bsd-newproc.c',
 		'src/rtems-bsd-vm_glue.c',