diff --git a/include/patty/timer.h b/include/patty/timer.h
index 5bb4321..2550eb9 100644
--- a/include/patty/timer.h
+++ b/include/patty/timer.h
@@ -10,7 +10,7 @@ enum patty_timer_flags {
 
 typedef struct _patty_timer {
     time_t ms;
-    struct timespec t;
+    struct timeval t;
     uint32_t flags;
 } patty_timer;
 
@@ -26,11 +26,11 @@ void patty_timer_start(patty_timer *timer);
 
 void patty_timer_stop(patty_timer *timer);
 
-void patty_timer_sub(struct timespec *a,
-                     struct timespec *b,
-                     struct timespec *c);
+void patty_timer_sub(struct timeval *a,
+                     struct timeval *b,
+                     struct timeval *c);
 
 void patty_timer_tick(patty_timer *timer,
-                      struct timespec *elapsed);
+                      struct timeval *elapsed);
 
 #endif /* _PATTY_TIMER_H */
diff --git a/src/server.c b/src/server.c
index de84d53..a4e6493 100644
--- a/src/server.c
+++ b/src/server.c
@@ -27,7 +27,7 @@ struct _patty_ax25_server {
     int fd,     /* fd of UNIX domain socket */
         fd_max;
 
-    struct timespec elapsed;
+    struct timeval elapsed;
 
     fd_set fds_watch, /* fds to monitor with select() */
            fds_r;     /* fds select()ed for reading */
@@ -2371,13 +2371,13 @@ int patty_ax25_server_event_handle(patty_ax25_server *server) {
 
     struct timeval timeout = { 1, 0 };
 
-    struct timespec before,
-                    after;
+    struct timeval before,
+                   after;
 
     memcpy(&server->fds_r, &server->fds_watch, sizeof(server->fds_r));
 
-    if (clock_gettime(CLOCK_MONOTONIC, &before) < 0) {
-        goto error_clock_gettime;
+    if (gettimeofday(&before, NULL) < 0) {
+        goto error_gettimeofday;
     }
 
     if ((nready = select( server->fd_max,
@@ -2388,8 +2388,8 @@ int patty_ax25_server_event_handle(patty_ax25_server *server) {
         goto error_io;
     }
 
-    if (clock_gettime(CLOCK_MONOTONIC, &after) < 0) {
-        goto error_clock_gettime;
+    if (gettimeofday(&after, NULL) < 0) {
+        goto error_gettimeofday;
     }
 
     patty_timer_sub(&after, &before, &server->elapsed);
@@ -2414,7 +2414,7 @@ int patty_ax25_server_event_handle(patty_ax25_server *server) {
 
     return 0;
 
-error_clock_gettime:
+error_gettimeofday:
 error_io:
     return -1;
 }
diff --git a/src/timer.c b/src/timer.c
index 2859694..8478e31 100644
--- a/src/timer.c
+++ b/src/timer.c
@@ -14,19 +14,19 @@ int patty_timer_expired(patty_timer *timer) {
     }
 
     return timer->t.tv_sec < 0
-       || (timer->t.tv_sec == 0 && timer->t.tv_nsec <= 0)? 1: 0;
+       || (timer->t.tv_sec == 0 && timer->t.tv_usec <= 0)? 1: 0;
 }
 
 void patty_timer_clear(patty_timer *timer) {
     timer->t.tv_sec  = 0;
-    timer->t.tv_nsec = 0;
+    timer->t.tv_usec = 0;
 
     timer->flags &= ~PATTY_TIMER_RUNNING;
 }
 
 void patty_timer_start(patty_timer *timer) {
     timer->t.tv_sec  =  timer->ms / 1000;
-    timer->t.tv_nsec = (timer->ms % 1000) * 1000000;
+    timer->t.tv_usec = (timer->ms % 1000) * 1000;
 
     timer->flags |= PATTY_TIMER_RUNNING;
 }
@@ -35,17 +35,17 @@ void patty_timer_stop(patty_timer *timer) {
     timer->flags &= ~PATTY_TIMER_RUNNING;
 }
 
-void patty_timer_sub(struct timespec *a,
-                     struct timespec *b,
-                     struct timespec *c) {
-    c->tv_nsec  = a->tv_nsec - b->tv_nsec;
-    c->tv_sec   = a->tv_sec  - b->tv_sec - (c->tv_nsec / 1000000000);
-    c->tv_nsec %= 1000000000;
+void patty_timer_sub(struct timeval *a,
+                     struct timeval *b,
+                     struct timeval *c) {
+    c->tv_usec  = a->tv_usec - b->tv_usec;
+    c->tv_sec   = a->tv_sec  - b->tv_sec - (c->tv_usec / 1000000);
+    c->tv_usec %= 1000000;
 }
 
 void patty_timer_tick(patty_timer *timer,
-                      struct timespec *elapsed) {
-    struct timespec res;
+                      struct timeval *elapsed) {
+    struct timeval res;
 
     if (!(timer->flags & PATTY_TIMER_RUNNING)) {
         return;
@@ -54,5 +54,5 @@ void patty_timer_tick(patty_timer *timer,
     patty_timer_sub(&timer->t, elapsed, &res);
 
     timer->t.tv_sec  = res.tv_sec;
-    timer->t.tv_nsec = res.tv_nsec;
+    timer->t.tv_usec = res.tv_usec;
 }