diff --git a/packages/plugin-bartack/src/bartack.js b/packages/plugin-bartack/src/bartack.js
index 86b68a6bc75..1740e243eee 100644
--- a/packages/plugin-bartack/src/bartack.js
+++ b/packages/plugin-bartack/src/bartack.js
@@ -2,7 +2,7 @@ const name = (n, so) => `${so.prefix}${n}${so.suffix}`
 
 const drawBartack = (points, self) => {
   let path = new self.Path().move(points.path1[0])
-  for (let i in points.path1) {
+  for (const i in points.path1) {
     if (points.path1[i]) path = path.line(points.path1[i])
     if (points.path2[i]) path = path.line(points.path2[i])
   }
diff --git a/packages/plugin-bartack/src/index.js b/packages/plugin-bartack/src/index.js
index cd8e61f7222..e18fd985623 100644
--- a/packages/plugin-bartack/src/index.js
+++ b/packages/plugin-bartack/src/index.js
@@ -5,24 +5,20 @@ export default {
   name: name,
   version: version,
   hooks: {
-    preRender: function (svg) {
-      if (svg.attributes.get('freesewing:plugin-bartack') === false) {
-        svg.attributes.set('freesewing:plugin-bartack', version)
-      }
-    },
+    preRender: svg => svg.attributes.setIfUnset('freesewing:plugin-bartack', version)
   },
   macros: {
     bartack: function (so) {
-      let self = this
+      const self = this
       return bartack(so, self)
     },
     bartackAlong: function (so) {
-      let self = this
+      const self = this
       so.bartackAlong = true
       return bartack(so, self)
     },
     bartackFractionAlong: function (so) {
-      let self = this
+      const self = this
       so.bartackFractionAlong = true
       return bartack(so, self)
     },