diff --git a/cleanup b/cleanup
index 74d6d20..fd91312 100755
--- a/cleanup
+++ b/cleanup
@@ -1,5 +1,6 @@
 #!/bin/sh
 export PATH="$HOME/.cargo/bin:$PATH"
+sed -i '' 's|#export CARGO_HOME|export CARGO_HOME|g' src/Makevars
 cd src/myrustlib
 ./vendor-update.sh