diff --git a/auto/sources b/auto/sources
index 14bb80d..fa2b2df 100644
--- a/auto/sources
+++ b/auto/sources
@@ -16,6 +16,7 @@
             src/core/ngx_file.h \
             src/core/ngx_crc.h \
             src/core/ngx_regex.h \
+            src/core/ngx_rbtree.h \
             src/core/ngx_times.h \
             src/core/ngx_connection.h \
             src/core/ngx_conf_file.h \
@@ -32,6 +33,7 @@
             src/core/ngx_inet.c \
             src/core/ngx_file.c \
             src/core/ngx_regex.c \
+            src/core/ngx_rbtree.c \
             src/core/ngx_times.c \
             src/core/ngx_conf_file.c \
             src/core/ngx_garbage_collector.c"