diff --git a/buildbot/osuosl/master/config/builders.py b/buildbot/osuosl/master/config/builders.py
index 5d1dce0db..786d3b6cd 100644
--- a/buildbot/osuosl/master/config/builders.py
+++ b/buildbot/osuosl/master/config/builders.py
@@ -471,7 +471,7 @@
     'workernames' : ["linaro-clang-aarch64-full-2stage"],
     'builddir': "clang-aarch64-full-2stage",
     'factory' : ClangBuilder.getClangCMakeBuildFactory(
-                    clean=False,
+                    clean=True,
                     checkout_flang=True,
                     checkout_lld=True,
                     useTwoStage=True,