diff --git a/build.json b/build.json
index e0e05c8..d60f4e5 100644
--- a/build.json
+++ b/build.json
@@ -141,6 +141,7 @@
         "src/core/statistics/census_interface.h",
         "src/core/statistics/census_log.h",
         "src/core/statistics/census_rpc_stats.h",
+        "src/core/statistics/census_tracing.h",
         "src/core/statistics/hash_table.h",
         "src/core/statistics/window_stats.h",
         "src/core/surface/call.h",
@@ -848,6 +849,30 @@
       ]
     },
     {
+      "name": "census_trace_store_test",
+      "build": "executable",
+      "src": [
+        "test/core/statistics/trace_test.c"
+      ],
+     "deps": [
+        "grpc_test_util",
+        "grpc",
+        "gpr"
+      ]
+    },
+    {
+      "name": "census_stats_store_test",
+      "build": "executable",
+      "src": [
+        "test/core/statistics/rpc_stats_test.c"
+      ],
+      "deps": [
+        "grpc_test_util",
+        "grpc",
+        "gpr"
+      ]
+    },
+    {
       "name": "census_window_stats_test",
       "build": "test",
       "src": [