diff --git a/auto/modules b/auto/modules
index 433767a..603c3a0 100644
--- a/auto/modules
+++ b/auto/modules
@@ -973,7 +973,8 @@
                      ngx_stream_core_module \
                      ngx_stream_log_module \
                      ngx_stream_proxy_module \
-                     ngx_stream_upstream_module"
+                     ngx_stream_upstream_module \
+                     ngx_stream_write_filter_module"
     ngx_module_incs="src/stream"
     ngx_module_deps="src/stream/ngx_stream.h \
                      src/stream/ngx_stream_variables.h \
@@ -988,7 +989,8 @@
                      src/stream/ngx_stream_log_module.c \
                      src/stream/ngx_stream_proxy_module.c \
                      src/stream/ngx_stream_upstream.c \
-                     src/stream/ngx_stream_upstream_round_robin.c"
+                     src/stream/ngx_stream_upstream_round_robin.c \
+                     src/stream/ngx_stream_write_filter_module.c"
 
     . auto/module
 
diff --git a/auto/sources b/auto/sources
index 216e900..1398147 100644
--- a/auto/sources
+++ b/auto/sources
@@ -167,6 +167,7 @@
             src/os/unix/ngx_send.c \
             src/os/unix/ngx_writev_chain.c \
             src/os/unix/ngx_udp_send.c \
+            src/os/unix/ngx_udp_sendmsg_chain.c \
             src/os/unix/ngx_channel.c \
             src/os/unix/ngx_shmem.c \
             src/os/unix/ngx_process.c \