diff --git a/create-attributable-archive.sh b/create-attributable-archive.sh
index 7fa0e44..b98e363 100755
--- a/create-attributable-archive.sh
+++ b/create-attributable-archive.sh
@@ -196,7 +196,7 @@ exit_cleanup() {
 
     for var in $(compgen -v); do
         printf "unsetting $var"
-        unset "$var" 2>/dev/null
+        sudo unset "$var" 2>/dev/null
         checkcode $?
     done
 }