diff --git a/rebuild.sh b/rebuild.sh
index a5ea75a..a6743ff 100644
--- a/rebuild.sh
+++ b/rebuild.sh
@@ -1,6 +1,6 @@
 export RPI=3
 
-export CLEAN="false"
+export CLEAN="true"
 export BUILDCIRCLE="true"
 export PATH=$(readlink -f ./gcc-*/bin/):$PATH