diff --git a/buildbot/osuosl/master/config/builders.py b/buildbot/osuosl/master/config/builders.py
index 2da9eea..ed64bbe 100644
--- a/buildbot/osuosl/master/config/builders.py
+++ b/buildbot/osuosl/master/config/builders.py
@@ -1559,7 +1559,7 @@
     {'name' : "flang-x86_64-knl-linux",
     'tags'  : ["flang"],
     'workernames' : ["alcf-theta-flang"],
-    'builddir': "flang-x86_64-linux",
+    'builddir': "flang-x86_64-knl-linux",
     'factory' : UnifiedTreeBuilder.getCmakeWithNinjaBuildFactory(
                     depends_on_projects=['llvm','mlir','clang','flang'],
                     extra_configure_args=[