diff --git a/src/components/timeline/timeline.js b/src/components/timeline/timeline.js
index 9737be233..ff2c77ecc 100644
--- a/src/components/timeline/timeline.js
+++ b/src/components/timeline/timeline.js
@@ -183,12 +183,12 @@ const Timeline = {
       // if the status is too far from viewport, check the next/previous ones if
       // they happen to be better
       while (err < -100 && approxIndex < statuses.length - 1) {
-        approxIndex++
         err += statuses[approxIndex].offsetHeight
+        approxIndex++
       }
       while (err > window.innerHeight + 100 && approxIndex > 0) {
-        err -= statuses[approxIndex].offsetHeight
         approxIndex--
+        err -= statuses[approxIndex].offsetHeight
       }
 
       // this status is now the center point for virtual scrolling and visible