Fix sanity
diff --git a/build.yaml b/build.yaml
index 383090f..1df6265 100644
--- a/build.yaml
+++ b/build.yaml
@@ -480,6 +480,8 @@
   - src/core/ext/filters/http/http_filters_plugin.c
   - src/core/ext/filters/http/server/http_server_filter.c
   plugin: grpc_http_filters
+  uses:
+  - grpc_base
 - name: grpc_lb_policy_grpclb
   headers:
   - src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h