diff --git a/js/tsa.js b/js/tsa.js
index 6af89a3852c6fe624f9066a670b6bb09462e4293..b41140b25ad056f191c10f9ddcb418b12222e94e 100644
--- a/js/tsa.js
+++ b/js/tsa.js
@@ -267,10 +267,10 @@ function allowDrop(e) {
     e.preventDefault();
 }
 
-function dropStamp(e) {
+function dropOTSFile(e) {
     e.preventDefault();
     var file = e.dataTransfer.items[0].getAsFile();
-    stamp(file);
+    ots_check(file);
 }