diff --git a/scripts/finalize_nix_ci.sh b/scripts/finalize_nix_ci.sh
index f724d3f..baa6a0d 100644
--- a/scripts/finalize_nix_ci.sh
+++ b/scripts/finalize_nix_ci.sh
@@ -12,7 +12,7 @@ echo -e "\\e[0Ksection_start:`date +%s`:finalize_nix_ci[collapsed=true]\\r\\e[0K
 
   if [ -z "$NIX_CI_DISABLE_CACHE" ]; then
     echo -e "\\e[0Ksection_start:`date +%s`:cache_push[collapsed=true]\\r\\e[0KPushing $COUNT new store paths to cache ($NIX_CI_CACHE_STRATEGY)"
-      echo -n $NEW_PATHS | {
+      echo -n "$NEW_PATHS" | {
         case "$NIX_CI_CACHE_STRATEGY" in
           "runner")
             export RUNNER_CACHE=''${RUNNER_CACHE:-"file://$(pwd)/.nix-cache"}