diff --git a/backup.nix b/backup.nix
index d21cafd..d2df465 100644
--- a/backup.nix
+++ b/backup.nix
@@ -5,16 +5,26 @@ let
     name = "restic-wrapper";
     runtimeInputs = [
       pkgs.restic
-      pkgs.systemd
     ];
     text = ''
       if [ -z "$BACKUP_HELPER_DIRS"  ]; then
-        echo "BACKUP_HELPER_DIRS is not set";
+        echo "BACKUP_HELPER_DIRS is not set"
         exit 1;
       fi
+      exit_code=0;
       for i in ''${BACKUP_HELPER_DIRS//,/ }; do
         echo "Starting backup of $i";
+        output=$(restic backup "$i" && rc=$? || rc=$?);
+        if [ $rc -ne 0 ]; then
+          echo "Backup of $i failed with exit code $rc:"
+          echo "$output"
+          exit_code="$rc"
+        else
+          echo "Backup of $i successful:"
+          echo "$output"
+        fi
       done
+      exit "$exit_code";
     '';
   };
 in