diff --git a/install/etc/s6/services/10-db-backup/run b/install/etc/s6/services/10-db-backup/run
index 86e02fe..2dc34b4 100755
--- a/install/etc/s6/services/10-db-backup/run
+++ b/install/etc/s6/services/10-db-backup/run
@@ -50,7 +50,7 @@ if [ "$PARALLEL_COMPRESSION" = "TRUE " ]; then
 else
     BZIP="bzip2"
     GZIP="gzip"
-    XZIP=="xz"
+    XZIP="xz"
 fi