diff --git a/static/js/directives/ui/repo-tag-history.js b/static/js/directives/ui/repo-tag-history.js
index 0fbffab5b..8a15e2fb5 100644
--- a/static/js/directives/ui/repo-tag-history.js
+++ b/static/js/directives/ui/repo-tag-history.js
@@ -75,7 +75,8 @@ angular.module('quay').directive('repoTagHistory', function () {
             // then the action was a move, rather than a delete and a create.
             var currentEntries = tagEntries[tagName];
             var futureEntry = currentEntries.length > 0 ? currentEntries[currentEntries.length - 1] : {};
-            if (tag.end_ts - futureEntry.start_ts <= MOVE_THRESHOLD) {
+
+            if (futureEntry.start_ts - tag.end_ts <= MOVE_THRESHOLD) {
               removeEntry(futureEntry);
               addEntry(futureEntry.reversion ? 'revert': 'move', tag.end_ts,
                        futureEntry.docker_image_id, dockerImageId);