diff --git a/src/HtmlUtils.tsx b/src/HtmlUtils.tsx
index 569b1662fe..7bccd47622 100644
--- a/src/HtmlUtils.tsx
+++ b/src/HtmlUtils.tsx
@@ -416,24 +416,21 @@ export function bodyToHtml(content: IContent, highlights: string[], opts: IOpts
             if (SdkConfig.get()['latex_maths']) {
                 const mathDelimiters = [
                     { pattern: "<div data-mx-maths=\"([^\"]*)\">(.|\\s)*?</div>", display: true },
-                    { pattern: "<span data-mx-maths=\"([^\"]*)\">(.|\\s)*?</span>", display: false }
+                    { pattern: "<span data-mx-maths=\"([^\"]*)\">(.|\\s)*?</span>", display: false },
                 ];
 
-                mathDelimiters.forEach(function (d) {
-                    var reg = RegExp(d.pattern, "gm");
-
-                    safeBody = safeBody.replace(reg, function(match, p1) {
+                mathDelimiters.forEach(function(d) {
+                    safeBody = safeBody.replace(RegExp(d.pattern, "gm"), function(m, p1) {
                         return katex.renderToString(
                             AllHtmlEntities.decode(p1),
                             {
                                 throwOnError: false,
                                 displayMode: d.display,
-                                output: "mathml"
+                                output: "mathml",
                             })
                     });
                 });
-        }
-
+            }
         }
     } finally {
         delete sanitizeParams.textFilter;
diff --git a/src/editor/serialize.ts b/src/editor/serialize.ts
index da8ae4e820..02194a1d59 100644
--- a/src/editor/serialize.ts
+++ b/src/editor/serialize.ts
@@ -40,7 +40,7 @@ export function mdSerialize(model: EditorModel) {
 }
 
 export function htmlSerializeIfNeeded(model: EditorModel, {forceHTML = false} = {}) {
-    var md = mdSerialize(model);
+    let md = mdSerialize(model);
 
     if (SdkConfig.get()['latex_maths']) {
         const displayPattern = (SdkConfig.get()['latex_maths_delims'] || {})['display_pattern'] ||
@@ -48,12 +48,12 @@ export function htmlSerializeIfNeeded(model: EditorModel, {forceHTML = false} =
         const inlinePattern = (SdkConfig.get()['latex_maths_delims'] || {})['inline_pattern'] ||
             "\\$\\$(([^$]|\\\\\\$)*)\\$\\$";
 
-        md = md.replace(RegExp(displayPattern, "gm"), function(m,p1) {
+        md = md.replace(RegExp(displayPattern, "gm"), function(m, p1) {
             const p1e = AllHtmlEntities.encode(p1);
             return `<div data-mx-maths="${p1e}"><code>${p1e}</code></div>`;
         });
 
-        md = md.replace(RegExp(inlinePattern, "gm"), function(m,p1) {
+        md = md.replace(RegExp(inlinePattern, "gm"), function(m, p1) {
             const p1e = AllHtmlEntities.encode(p1);
             return `<span data-mx-maths="${p1e}"><code>${p1e}</code></span>`;
         });