diff --git a/scripts/clean-build.sh b/scripts/clean-build.sh
index e6f6d75..b2de311 100755
--- a/scripts/clean-build.sh
+++ b/scripts/clean-build.sh
@@ -36,6 +36,8 @@ apt-get install -qq -y \
   pkg-config \
   protobuf-compiler
 
+apt-get clean
+
 cd /anbox
 
 # In cases where anbox comes directly from a checked out Android