diff --git a/zorg/buildbot/builders/sanitizers/buildbot_cmake.sh b/zorg/buildbot/builders/sanitizers/buildbot_cmake.sh
--- a/zorg/buildbot/builders/sanitizers/buildbot_cmake.sh
+++ b/zorg/buildbot/builders/sanitizers/buildbot_cmake.sh
@@ -12,6 +12,7 @@
 ARCH=`uname -m`
 export PATH="/usr/local/bin:$PATH"
 export ANDROID_SDK_HOME=$ROOT/../../..
+CMAKE_ARGS=''
 
 for arg in "$@"
 do
@@ -25,7 +26,7 @@
 rm -rf compiler_rt_build llvm_build* symbolizer_build*
 
 USE_CCACHE=
-if ccache -s ; then
+if (( command -v ccache && ccache -s )) ; then
   USE_CCACHE="-DLLVM_CCACHE_BUILD=ON"
   rm -rf clang_build
 fi