diff --git a/src/core/ngx_buf.c b/src/core/ngx_buf.c
index 94a3d3f10..764b34bf9 100644
--- a/src/core/ngx_buf.c
+++ b/src/core/ngx_buf.c
@@ -221,7 +221,7 @@ ngx_chain_update_chains(ngx_pool_t *p, ngx_chain_t **free, ngx_chain_t **busy,
 
 
 ngx_chain_t *
-ngx_handle_sent_chain(ngx_chain_t *in, off_t sent)
+ngx_chain_update_sent(ngx_chain_t *in, off_t sent)
 {
     off_t  size;
 
diff --git a/src/core/ngx_buf.h b/src/core/ngx_buf.h
index cc28a3e15..f6b2dba86 100644
--- a/src/core/ngx_buf.h
+++ b/src/core/ngx_buf.h
@@ -158,6 +158,6 @@ ngx_chain_t *ngx_chain_get_free_buf(ngx_pool_t *p, ngx_chain_t **free);
 void ngx_chain_update_chains(ngx_pool_t *p, ngx_chain_t **free,
     ngx_chain_t **busy, ngx_chain_t **out, ngx_buf_tag_t tag);
 
-ngx_chain_t *ngx_handle_sent_chain(ngx_chain_t *in, off_t sent);
+ngx_chain_t *ngx_chain_update_sent(ngx_chain_t *in, off_t sent);
 
 #endif /* _NGX_BUF_H_INCLUDED_ */
diff --git a/src/os/unix/ngx_darwin_sendfile_chain.c b/src/os/unix/ngx_darwin_sendfile_chain.c
index 8485f9749..d28f6e150 100644
--- a/src/os/unix/ngx_darwin_sendfile_chain.c
+++ b/src/os/unix/ngx_darwin_sendfile_chain.c
@@ -305,7 +305,7 @@ ngx_darwin_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
 
         c->sent += sent;
 
-        in = ngx_handle_sent_chain(in, sent);
+        in = ngx_chain_update_sent(in, sent);
 
         if (eintr) {
             send = prev_send + sent;
diff --git a/src/os/unix/ngx_freebsd_sendfile_chain.c b/src/os/unix/ngx_freebsd_sendfile_chain.c
index 88eacc2d1..666e0c57b 100644
--- a/src/os/unix/ngx_freebsd_sendfile_chain.c
+++ b/src/os/unix/ngx_freebsd_sendfile_chain.c
@@ -356,7 +356,7 @@ ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
 
         c->sent += sent;
 
-        in = ngx_handle_sent_chain(in, sent);
+        in = ngx_chain_update_sent(in, sent);
 
 #if (NGX_HAVE_AIO_SENDFILE)
         if (c->busy_sendfile) {
diff --git a/src/os/unix/ngx_linux_sendfile_chain.c b/src/os/unix/ngx_linux_sendfile_chain.c
index 60867c51e..99d00bfea 100644
--- a/src/os/unix/ngx_linux_sendfile_chain.c
+++ b/src/os/unix/ngx_linux_sendfile_chain.c
@@ -313,7 +313,7 @@ ngx_linux_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
 
         c->sent += sent;
 
-        in = ngx_handle_sent_chain(in, sent);
+        in = ngx_chain_update_sent(in, sent);
 
         if (eintr) {
             send = prev_send;
diff --git a/src/os/unix/ngx_solaris_sendfilev_chain.c b/src/os/unix/ngx_solaris_sendfilev_chain.c
index 1b71f1dd8..e618379a7 100644
--- a/src/os/unix/ngx_solaris_sendfilev_chain.c
+++ b/src/os/unix/ngx_solaris_sendfilev_chain.c
@@ -197,7 +197,7 @@ ngx_solaris_sendfilev_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
 
         c->sent += sent;
 
-        in = ngx_handle_sent_chain(in, sent);
+        in = ngx_chain_update_sent(in, sent);
 
         if (eintr) {
             send = prev_send + sent;
diff --git a/src/os/unix/ngx_writev_chain.c b/src/os/unix/ngx_writev_chain.c
index c7b6ebf7c..2f5b175ae 100644
--- a/src/os/unix/ngx_writev_chain.c
+++ b/src/os/unix/ngx_writev_chain.c
@@ -131,7 +131,7 @@ ngx_writev_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
 
         c->sent += sent;
 
-        in = ngx_handle_sent_chain(in, sent);
+        in = ngx_chain_update_sent(in, sent);
 
         if (eintr) {
             send = prev_send;
diff --git a/src/os/win32/ngx_wsasend_chain.c b/src/os/win32/ngx_wsasend_chain.c
index a0d438a61..081562762 100644
--- a/src/os/win32/ngx_wsasend_chain.c
+++ b/src/os/win32/ngx_wsasend_chain.c
@@ -113,7 +113,7 @@ ngx_wsasend_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
 
         c->sent += sent;
 
-        in = ngx_handle_sent_chain(in, sent);
+        in = ngx_chain_update_sent(in, sent);
 
         if (send - prev_send != sent) {
             wev->ready = 0;
@@ -279,7 +279,7 @@ ngx_overlapped_wsasend_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
 
     c->sent += sent;
 
-    in = ngx_handle_sent_chain(in, sent);
+    in = ngx_chain_update_sent(in, sent);
 
     if (in) {
         wev->ready = 0;