diff --git a/quartz/plugins/transformers/links.ts b/quartz/plugins/transformers/links.ts
index e20af59f1..94ef04031 100644
--- a/quartz/plugins/transformers/links.ts
+++ b/quartz/plugins/transformers/links.ts
@@ -58,12 +58,12 @@ export const CrawlLinks: QuartzTransformerPlugin<Partial<Options>> = (userOpts)
                 node.properties &&
                 typeof node.properties.href === "string"
               ) {
-                let href = node.properties.href
-                var dest = href as RelativeURL
-                var refIcon: string | ElementContent | null = null
-                var matched = false
+                const href = node.properties.href
+                let dest = href as RelativeURL
+                let refIcon: string | ElementContent | null = null
+                let matched = false
                 opts.substitutions?.every(([regex, sub]) => {
-                  let parts = href.match(regex)
+                  const parts = href.match(regex)
                   if (parts != null) {
                     dest = parts.slice(1).join("") as RelativeURL
                     if (typeof sub == "object") {
@@ -86,25 +86,25 @@ export const CrawlLinks: QuartzTransformerPlugin<Partial<Options>> = (userOpts)
                     refIcon != null
                       ? refIcon
                       : {
-                          type: "element",
-                          tagName: "svg",
-                          properties: {
-                            "aria-hidden": "true",
-                            class: "external-icon",
-                            style: "max-width:0.8em;max-height:0.8em",
-                            viewBox: "0 0 512 512",
-                          },
-                          children: [
-                            {
-                              type: "element",
-                              tagName: "path",
-                              properties: {
-                                d: "M320 0H288V64h32 82.7L201.4 265.4 178.7 288 224 333.3l22.6-22.6L448 109.3V192v32h64V192 32 0H480 320zM32 32H0V64 480v32H32 456h32V480 352 320H424v32 96H64V96h96 32V32H160 32z",
-                              },
-                              children: [],
-                            },
-                          ],
+                        type: "element",
+                        tagName: "svg",
+                        properties: {
+                          "aria-hidden": "true",
+                          class: "external-icon",
+                          style: "max-width:0.8em;max-height:0.8em",
+                          viewBox: "0 0 512 512",
                         },
+                        children: [
+                          {
+                            type: "element",
+                            tagName: "path",
+                            properties: {
+                              d: "M320 0H288V64h32 82.7L201.4 265.4 178.7 288 224 333.3l22.6-22.6L448 109.3V192v32h64V192 32 0H480 320zM32 32H0V64 480v32H32 456h32V480 352 320H424v32 96H64V96h96 32V32H160 32z",
+                            },
+                            children: [],
+                          },
+                        ],
+                      },
                   )
                 }