diff --git a/js/pacosako.js b/js/pacosako.js
index acb06a6..4d7c939 100644
--- a/js/pacosako.js
+++ b/js/pacosako.js
@@ -452,7 +452,7 @@ function diffHistory(game1, game2) {
       }
    }
 
-   let suffix = hist.history.slice(history_before.length).trimStart();
+   let suffix = hist.history.slice(history_before.length).match(/^(?:\s|…)*(.*)$/)[1];
    if (!suffix.match(/^\d+\./)) {
       suffix = `${turn_before}.${NBSP}… ${suffix}`;
    }