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
@@ -650,7 +650,8 @@
                     useTwoStage=True,
                     stage1_config='Release',
                     stage2_config='Release',
-                    extra_cmake_args=['-DLLVM_ENABLE_ASSERTIONS=ON'])},
+                    extra_cmake_args=['-DLLVM_ENABLE_ASSERTIONS=ON',
+                                      '-DLLVM_TARGETS_TO_BUILD=Sparc'])},
 
     {'name' : "clang-hexagon-elf",
     'tags'  : ["clang"],