diff --git a/zorg/buildbot/builders/sanitizers/buildbot_android_functions.sh b/zorg/buildbot/builders/sanitizers/buildbot_android_functions.sh
index 944e851..b245233 100755
--- a/zorg/buildbot/builders/sanitizers/buildbot_android_functions.sh
+++ b/zorg/buildbot/builders/sanitizers/buildbot_android_functions.sh
@@ -37,6 +37,7 @@
 
   if ccache -s ; then
     CMAKE_OPTIONS="${CMAKE_OPTIONS} -DLLVM_CCACHE_BUILD=ON"
+    rm -rf llvm_build64
   fi
 
   echo @@@BUILD_STEP bootstrap clang@@@