diff --git a/buildbot/osuosl/master/config/builders.py b/buildbot/osuosl/master/config/builders.py
--- a/buildbot/osuosl/master/config/builders.py
+++ b/buildbot/osuosl/master/config/builders.py
@@ -1476,6 +1476,7 @@
                     extra_configure_args=[
                         "-DLLVM_BUILD_EXAMPLES=ON",
                         "-DLLVM_ENABLE_PROJECTS=mlir",
+                        "-DLLVM_ENABLE_WERROR=ON",
                         "-DLLVM_TARGETS_TO_BUILD='host;NVPTX;AMDGPU'",
                     ])},