diff --git a/src/xcb_in.c b/src/xcb_in.c
index a2f7312..6dd358c 100644
--- a/src/xcb_in.c
+++ b/src/xcb_in.c
@@ -69,16 +69,6 @@ typedef struct reader_list {
     struct reader_list *next;
 } reader_list;
 
-static void wake_up_next_reader(xcb_connection_t *c)
-{
-    int pthreadret;
-    if(c->in.readers)
-        pthreadret = pthread_cond_signal(c->in.readers->data);
-    else
-        pthreadret = pthread_cond_signal(&c->in.event_cond);
-    assert(pthreadret == 0);
-}
-
 static int read_packet(xcb_connection_t *c)
 {
     xcb_generic_reply_t genrep;
@@ -402,7 +392,7 @@ void *xcb_wait_for_reply(xcb_connection_t *c, unsigned int request, xcb_generic_
         pthread_cond_destroy(&cond);
     }
 
-    wake_up_next_reader(c);
+    _xcb_in_wake_up_next_reader(c);
     pthread_mutex_unlock(&c->iolock);
     return ret;
 }
@@ -545,7 +535,7 @@ xcb_generic_event_t *xcb_wait_for_event(xcb_connection_t *c)
         if(!_xcb_conn_wait(c, &c->in.event_cond, 0, 0))
             break;
 
-    wake_up_next_reader(c);
+    _xcb_in_wake_up_next_reader(c);
     pthread_mutex_unlock(&c->iolock);
     return ret;
 }
@@ -629,6 +619,16 @@ void _xcb_in_destroy(_xcb_in *in)
     }
 }
 
+void _xcb_in_wake_up_next_reader(xcb_connection_t *c)
+{
+    int pthreadret;
+    if(c->in.readers)
+        pthreadret = pthread_cond_signal(c->in.readers->data);
+    else
+        pthreadret = pthread_cond_signal(&c->in.event_cond);
+    assert(pthreadret == 0);
+}
+
 int _xcb_in_expect_reply(xcb_connection_t *c, uint64_t request, enum workarounds workaround, int flags)
 {
     pending_reply *pend = malloc(sizeof(pending_reply));
diff --git a/src/xcb_out.c b/src/xcb_out.c
index afc12c1..fbce7a0 100644
--- a/src/xcb_out.c
+++ b/src/xcb_out.c
@@ -338,6 +338,7 @@ int _xcb_out_send(xcb_connection_t *c, struct iovec *vector, int count)
         ret = _xcb_conn_wait(c, &c->out.cond, &vector, &count);
     c->out.request_written = c->out.request;
     pthread_cond_broadcast(&c->out.cond);
+    _xcb_in_wake_up_next_reader(c);
     return ret;
 }
 
diff --git a/src/xcbint.h b/src/xcbint.h
index 9d44238..f07add8 100644
--- a/src/xcbint.h
+++ b/src/xcbint.h
@@ -137,6 +137,8 @@ typedef struct _xcb_in {
 int _xcb_in_init(_xcb_in *in);
 void _xcb_in_destroy(_xcb_in *in);
 
+void _xcb_in_wake_up_next_reader(xcb_connection_t *c);
+
 int _xcb_in_expect_reply(xcb_connection_t *c, uint64_t request, enum workarounds workaround, int flags);
 void _xcb_in_replies_done(xcb_connection_t *c);