diff --git a/libcxx/utils/ci/buildkite-pipeline.yml b/libcxx/utils/ci/buildkite-pipeline.yml
--- a/libcxx/utils/ci/buildkite-pipeline.yml
+++ b/libcxx/utils/ci/buildkite-pipeline.yml
@@ -90,6 +90,7 @@
     env:
         CC: "gcc-${GCC_STABLE_VERSION}"
         CXX: "g++-${GCC_STABLE_VERSION}"
+        ENABLE_CLANG_TIDY: "On"
     agents:
       queue: "libcxx-builders"
       os: "linux"
@@ -125,6 +126,7 @@
     env:
         CC: "clang-${LLVM_HEAD_VERSION}"
         CXX: "clang++-${LLVM_HEAD_VERSION}"
+        ENABLE_CLANG_TIDY: "On"
     agents:
       queue: "libcxx-builders"
       os: "linux"
@@ -238,6 +240,7 @@
     env:
         CC: "gcc-${GCC_STABLE_VERSION}"
         CXX: "g++-${GCC_STABLE_VERSION}"
+        ENABLE_CLANG_TIDY: "On"
     agents:
       queue: "libcxx-builders"
       os: "linux"
@@ -255,6 +258,7 @@
     env:
         CC: "clang-14"
         CXX: "clang++-14"
+        ENABLE_CLANG_TIDY: "On"
     agents:
       queue: "libcxx-builders"
       os: "linux"
@@ -272,6 +276,7 @@
     env:
         CC: "clang-15"
         CXX: "clang++-15"
+        ENABLE_CLANG_TIDY: "On"
     agents:
       queue: "libcxx-builders"
       os: "linux"
@@ -292,6 +297,7 @@
       env:
           CC: "clang-${LLVM_HEAD_VERSION}"
           CXX: "clang++-${LLVM_HEAD_VERSION}"
+          ENABLE_CLANG_TIDY: "On"
       agents:
         queue: "libcxx-builders"
         os: "linux"
@@ -309,6 +315,7 @@
       env:
           CC: "clang-${LLVM_HEAD_VERSION}"
           CXX: "clang++-${LLVM_HEAD_VERSION}"
+          ENABLE_CLANG_TIDY: "On"
       agents:
         queue: "libcxx-builders"
         os: "linux"
@@ -326,6 +333,7 @@
       env:
           CC: "clang-${LLVM_HEAD_VERSION}"
           CXX: "clang++-${LLVM_HEAD_VERSION}"
+          ENABLE_CLANG_TIDY: "On"
       agents:
         queue: "libcxx-builders"
         os: "linux"
@@ -343,6 +351,7 @@
       env:
           CC: "clang-${LLVM_HEAD_VERSION}"
           CXX: "clang++-${LLVM_HEAD_VERSION}"
+          ENABLE_CLANG_TIDY: "On"
       agents:
         queue: "libcxx-builders"
         os: "linux"
@@ -382,6 +391,7 @@
     env:
         CC: "clang-${LLVM_HEAD_VERSION}"
         CXX: "clang++-${LLVM_HEAD_VERSION}"
+        ENABLE_CLANG_TIDY: "On"
     agents:
       queue: "libcxx-builders"
       os: "linux"
@@ -399,6 +409,7 @@
     env:
         CC: "clang-${LLVM_HEAD_VERSION}"
         CXX: "clang++-${LLVM_HEAD_VERSION}"
+        ENABLE_CLANG_TIDY: "On"
     agents:
       queue: "libcxx-builders"
       os: "linux"
@@ -416,6 +427,7 @@
     env:
         CC: "clang-${LLVM_HEAD_VERSION}"
         CXX: "clang++-${LLVM_HEAD_VERSION}"
+        ENABLE_CLANG_TIDY: "On"
     agents:
       queue: "libcxx-builders"
       os: "linux"
@@ -433,6 +445,7 @@
     env:
         CC: "clang-${LLVM_HEAD_VERSION}"
         CXX: "clang++-${LLVM_HEAD_VERSION}"
+        ENABLE_CLANG_TIDY: "On"
     agents:
       queue: "libcxx-builders"
       os: "linux"
@@ -450,6 +463,7 @@
     env:
         CC: "clang-${LLVM_HEAD_VERSION}"
         CXX: "clang++-${LLVM_HEAD_VERSION}"
+        ENABLE_CLANG_TIDY: "On"
     agents:
       queue: "libcxx-builders"
       os: "linux"
@@ -467,6 +481,7 @@
     env:
         CC: "clang-${LLVM_HEAD_VERSION}"
         CXX: "clang++-${LLVM_HEAD_VERSION}"
+        ENABLE_CLANG_TIDY: "On"
     agents:
       queue: "libcxx-builders"
       os: "linux"