diff --git a/build.js b/build.js
index 75b8160..0bdec13 100644
--- a/build.js
+++ b/build.js
@@ -185,8 +185,8 @@ function toc(str) {
         token.heading = opts.strip ? utils.strip(token.text, opts) : token.text;
 
         if (token.heading.indexOf("Ex -") >= 0) {
-            task_count++;
             token.heading = token.heading.replace("Ex -", `<span class='task'>${task_count}.</span> `);
+            task_count++;
         }
 
         // Create a "slugified" id for linking
@@ -364,8 +364,8 @@ renderer.heading = function (text, level, raw, slugger) {
     // console.log(text);
 
     if (text.indexOf("Ex -") >= 0) {
-        task_count++;
         text = text.replace("Ex -", `<span class='task'>${task_count}.</span> `);
+        task_count++;
     }
 
     // let sec = "<section>"