diff --git a/ccp/js/methodeditorcontroller.js b/ccp/js/methodeditorcontroller.js
index 265baf1..687c1dd 100644
--- a/ccp/js/methodeditorcontroller.js
+++ b/ccp/js/methodeditorcontroller.js
@@ -753,10 +753,11 @@ class CCPMethodEditorController extends HTMLElement{
   }
   
   renderCategoryHints(){
-    const cats = ["Uncategorized", this.getCurrentCategory()]
+    const cats1 = ["Uncategorized", this.getCurrentCategory()]
+    const cats = [...new Set(cats)]
     return `
       <datalist id="categoryhints">
-        ${cats.map(c=>`<option value="${c}">${c}</option>`}
+        ${cats.map(c=>`<option value="${c}">${c}</option>`)}
       </datalist>
     `
   }