diff --git a/TheyCameFromBeneathTheSea/tcfbts.html b/TheyCameFromBeneathTheSea/tcfbts.html
index 3453224082..4e3ef4407b 100644
--- a/TheyCameFromBeneathTheSea/tcfbts.html
+++ b/TheyCameFromBeneathTheSea/tcfbts.html
@@ -1,5 +1,5 @@
 <!-- Hidden fields -->
-<input type="hidden" name="attr_sheet-version" value="1.2">
+<input type="hidden" name="attr_sheet-version">
 
 <div class="wrapper">
     <div class="logo"><img src="https://github.com/LongShadowGames/roll20-character-sheets/blob/they-came-from-beneath-the-sea/TheyCameFromBeneathTheSea/images/they-came-from-beneath-the-sea.png?raw=true" alt="They Came From Beneath The Sea!"></div>
@@ -811,7 +811,7 @@
             <input type="hidden" class="toggle-more" name="attr_more" value="0" /><button type="action" name="act_toggle"><span class="more" data-i18n="more">More</span><span class="less" data-i18n="less">Less</span></button>
             <div class="expandable">
                 <h3 data-i18n="skillorattribute">Skill or Attribute</h3>
-                <input type="text" name="trademark_skillorattribute" list="skillorattributelist">
+                <input type="text" name="attr_trademark_skillorattribute" list="skillorattributelist">
                 <datalist id="skillorattributelist">
                     <option value="Aim" data-i18n="aim">Aim</option>
                     <option value="Athletics" data-i18n="athletics">Athletics</option>
@@ -2105,5 +2105,16 @@ on("sheet:opened", function(eventInfo){
             
         });
     });
+    
+    on('sheet:opened', function() {
+        getAttrs(['sheet-version','ambition_field'], function(values) {
+            let newattrs = {};
+            
+            if (String(values['sheet-version'])=="") {
+               newattrs['sheet-version']="1.21";
+            }
+           setAttrs(newattrs);
+        });
+    });
   
 </script>