diff --git a/filters/filter.c b/filters/filter.c
index eb757f5753..80ec6ddff3 100644
--- a/filters/filter.c
+++ b/filters/filter.c
@@ -214,7 +214,7 @@ bool mp_filter_graph_run(struct mp_filter *filter)
 
     int64_t end_time = 0;
     if (isfinite(r->max_run_time))
-        end_time = mp_add_timeout(mp_time_us(), MPMAX(r->max_run_time, 0));
+        end_time = mp_time_us_add(mp_time_us(), MPMAX(r->max_run_time, 0));
 
     // (could happen with separate filter graphs calling each other, for now
     // ignore this issue as we don't use such a setup anywhere)
diff --git a/misc/dispatch.c b/misc/dispatch.c
index e491b2a9b0..4d24409856 100644
--- a/misc/dispatch.c
+++ b/misc/dispatch.c
@@ -272,7 +272,7 @@ void mp_dispatch_run(struct mp_dispatch_queue *queue,
 void mp_dispatch_queue_process(struct mp_dispatch_queue *queue, double timeout)
 {
     pthread_mutex_lock(&queue->lock);
-    queue->wait = timeout > 0 ? mp_add_timeout(mp_time_us(), timeout) : 0;
+    queue->wait = timeout > 0 ? mp_time_us_add(mp_time_us(), timeout) : 0;
     assert(!queue->in_process); // recursion not allowed
     queue->in_process = true;
     queue->in_process_thread = pthread_self();
diff --git a/osdep/timer.c b/osdep/timer.c
index 2e184c3026..6f8d992a1e 100644
--- a/osdep/timer.c
+++ b/osdep/timer.c
@@ -60,7 +60,7 @@ double mp_time_sec(void)
     return mp_time_us() / (double)(1000 * 1000);
 }
 
-int64_t mp_add_timeout(int64_t time_us, double timeout_sec)
+int64_t mp_time_us_add(int64_t time_us, double timeout_sec)
 {
     assert(time_us > 0); // mp_time_us() returns strictly positive values
     double t = MPCLAMP(timeout_sec * (1000 * 1000), -0x1p63, 0x1p63);
@@ -111,5 +111,5 @@ struct timespec mp_time_us_to_realtime(int64_t time_us)
 
 struct timespec mp_rel_time_to_timespec(double timeout_sec)
 {
-    return mp_time_us_to_realtime(mp_add_timeout(mp_time_us(), timeout_sec));
+    return mp_time_us_to_realtime(mp_time_us_add(mp_time_us(), timeout_sec));
 }
diff --git a/osdep/timer.h b/osdep/timer.h
index b98c275697..a511812b56 100644
--- a/osdep/timer.h
+++ b/osdep/timer.h
@@ -52,7 +52,7 @@ void mp_end_hires_timers(int resolution_ms);
 
 // Add a time in seconds to the given time in microseconds, and return it.
 // Takes care of possible overflows. Never returns a negative or 0 time.
-int64_t mp_add_timeout(int64_t time_us, double timeout_sec);
+int64_t mp_time_us_add(int64_t time_us, double timeout_sec);
 
 // Convert the mp time in microseconds to a timespec using CLOCK_REALTIME.
 struct timespec mp_time_us_to_realtime(int64_t time_us);
diff --git a/player/client.c b/player/client.c
index 0f3a99f3f6..71e4fb99c7 100644
--- a/player/client.c
+++ b/player/client.c
@@ -905,7 +905,7 @@ mpv_event *mpv_wait_event(mpv_handle *ctx, double timeout)
     if (timeout < 0)
         timeout = 1e20;
 
-    int64_t deadline = mp_add_timeout(mp_time_us(), timeout);
+    int64_t deadline = mp_time_us_add(mp_time_us(), timeout);
 
     *event = (mpv_event){0};
     talloc_free_children(event);
diff --git a/player/playloop.c b/player/playloop.c
index 792e989b5c..e7f0a0c3e4 100644
--- a/player/playloop.c
+++ b/player/playloop.c
@@ -75,7 +75,7 @@ void mp_set_timeout(struct MPContext *mpctx, double sleeptime)
 {
     if (mpctx->sleeptime > sleeptime) {
         mpctx->sleeptime = sleeptime;
-        int64_t abstime = mp_add_timeout(mp_time_us(), sleeptime);
+        int64_t abstime = mp_time_us_add(mp_time_us(), sleeptime);
         mp_dispatch_adjust_timeout(mpctx->dispatch, abstime);
     }
 }
diff --git a/test/test_utils.c b/test/test_utils.c
index b75fe839b1..650e88d111 100644
--- a/test/test_utils.c
+++ b/test/test_utils.c
@@ -108,7 +108,7 @@ void mp_write_console_ansi(void) {};
 void mp_set_avdict(AVDictionary **dict, char **kv) {};
 
 #ifndef WIN32_TESTS
-void mp_add_timeout(void) {};
+void mp_time_us_add(void) {};
 void mp_rel_time_to_timespec(void) {};
 void mp_time_us(void) {};
 void mp_time_us_to_realtime(void) {};
diff --git a/test/test_utils.h b/test/test_utils.h
index 57c2d9c614..65202050eb 100644
--- a/test/test_utils.h
+++ b/test/test_utils.h
@@ -59,7 +59,7 @@ void mp_set_avdict(AVDictionary **dict, char **kv);
 // import the real versions of these functions and use them. On other
 // platforms, these can just be stubs for simplicity.
 #ifndef WIN32_TESTS
-void mp_add_timeout(void);
+void mp_time_us_add(void);
 void mp_rel_time_to_timespec(void);
 void mp_time_us(void);
 void mp_time_us_to_realtime(void);
diff --git a/video/out/cocoa_common.m b/video/out/cocoa_common.m
index 0827da6fc9..a5b8e3b2f4 100644
--- a/video/out/cocoa_common.m
+++ b/video/out/cocoa_common.m
@@ -786,7 +786,7 @@ static void vo_cocoa_resize_redraw(struct vo *vo, int width, int height)
 
     // Wait until a new frame with the new size was rendered. For some reason,
     // Cocoa requires this to be done before drawRect() returns.
-    struct timespec e = mp_time_us_to_realtime(mp_add_timeout(mp_time_us(), 0.1));
+    struct timespec e = mp_time_us_to_realtime(mp_time_us_add(mp_time_us(), 0.1));
     while (s->frame_w != width && s->frame_h != height && s->vo_ready) {
         if (pthread_cond_timedwait(&s->wakeup, &s->lock, &e))
             break;