diff --git a/src/irmc.c b/src/irmc.c
index 80aa56b..1dc81e7 100644
--- a/src/irmc.c
+++ b/src/irmc.c
@@ -15,14 +15,6 @@
 #include <pthread.h>
 #include <signal.h>
 #include <arpa/inet.h>
-#include <time.h>
-#include <sys/time.h>
-#include <stdio.h>
-
-#ifdef __MACH__
-    #include <mach/clock.h>
-    #include <mach/mach.h>
-#endif
 
 //#define DEBUG 1
 
@@ -30,6 +22,7 @@
 
 #include "cwprotocol.h"
 #include "beep.h"
+#include "util.h"
 
 int serial_status = 0, fd_serial, numbytes;
 
@@ -53,21 +46,6 @@ char last_sender[16];
 int translate = 1;
 int audio_status = 1;
 
-/* portable time, as listed in https://gist.github.com/jbenet/1087739  */
-void current_utc_time(struct timespec *ts) {
-#ifdef __MACH__ // OS X does not have clock_gettime, use clock_get_time
-  clock_serv_t cclock;
-  mach_timespec_t mts;
-  host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
-  clock_get_time(cclock, &mts);
-  mach_port_deallocate(mach_task_self(), cclock);
-  ts->tv_sec = mts.tv_sec;
-  ts->tv_nsec = mts.tv_nsec;
-#else
-  clock_gettime(CLOCK_REALTIME, ts);
-#endif
-}
-
 /* a better clock() in milliseconds */
 long fastclock(void)
 {
diff --git a/src/util.c b/src/util.c
new file mode 100644
index 0000000..6ce9d94
--- /dev/null
+++ b/src/util.c
@@ -0,0 +1,19 @@
+
+#include "util.h"
+
+/* portable time, as listed in https://gist.github.com/jbenet/1087739  */
+void current_utc_time(struct timespec *ts) {
+#ifdef __MACH__ // OS X does not have clock_gettime, use clock_get_time
+  clock_serv_t cclock;
+  mach_timespec_t mts;
+  host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
+  clock_get_time(cclock, &mts);
+  mach_port_deallocate(mach_task_self(), cclock);
+  ts->tv_sec = mts.tv_sec;
+  ts->tv_nsec = mts.tv_nsec;
+#else
+  clock_gettime(CLOCK_REALTIME, ts);
+#endif
+}
+
+
diff --git a/src/util.h b/src/util.h
new file mode 100644
index 0000000..ad3d467
--- /dev/null
+++ b/src/util.h
@@ -0,0 +1,12 @@
+#include <time.h>
+#include <sys/time.h>
+
+
+#ifdef __MACH__
+    #include <mach/clock.h>
+    #include <mach/mach.h>
+#endif
+
+
+void current_utc_time(struct timespec *ts);
+