diff --git a/web/app.js b/web/app.js
index 4eaa11f..ad50075 100644
--- a/web/app.js
+++ b/web/app.js
@@ -630,7 +630,7 @@ var App = {
     format_pace: function (d) {
         const pace = (1000.0 / 60.0) * (1.0 / d);
         const minutes = Math.floor(pace);
-        const seconds = (pace - minutes) * 60.0; 
+        const seconds = Math.floor((pace - minutes) * 60.0); 
         return `${minutes}:${seconds.toFixed(0).toString().padStart(2, "0")} min/km`;
     },