diff --git a/include_what_you_using_all_the_things.ps1 b/include_what_you_using_all_the_things.ps1
index cc3b1393c8..5b825de3c4 100644
--- a/include_what_you_using_all_the_things.ps1
+++ b/include_what_you_using_all_the_things.ps1
@@ -7,6 +7,7 @@
     --project:geometry `
     --project:integrators `
     --project:journal `
+    --project:nanobenchmarks `
     --project:ksp_plugin `
     --project:ksp_plugin_test `
     --project:mathematica `
diff --git a/nanobenchmarks/examples.cpp b/nanobenchmarks/examples.cpp
index 56727e745b..2d3e539fe5 100644
--- a/nanobenchmarks/examples.cpp
+++ b/nanobenchmarks/examples.cpp
@@ -1,6 +1,6 @@
 #include <emmintrin.h>
 
-#include "nanobenchmarks/function_registry.hpp"
+#include "nanobenchmarks/function_registry.hpp"  // 🧙 For BENCHMARK_FUNCTION etc.
 #include "numerics/cbrt.hpp"
 
 namespace principia {
diff --git a/nanobenchmarks/main.cpp b/nanobenchmarks/main.cpp
index 42ecb90cbb..00deceba04 100644
--- a/nanobenchmarks/main.cpp
+++ b/nanobenchmarks/main.cpp
@@ -20,13 +20,11 @@
 #include "absl/flags/parse.h"
 #include "absl/strings/str_join.h"
 #include "absl/strings/str_split.h"
-#include "base/array.hpp"
-#include "base/cpuid.hpp"
 #include "mathematica/logger.hpp"
+#include "mathematica/mathematica.hpp"
 #include "nanobenchmarks/function_registry.hpp"
 #include "nanobenchmarks/microarchitectures.hpp"
 #include "nanobenchmarks/performance_settings_controller.hpp"
-#include "numerics/cbrt.hpp"
 #include "testing_utilities/statistics.hpp"
 
 ABSL_FLAG(std::size_t,