diff --git a/src/js/wasm/biditrie.wat b/src/js/wasm/biditrie.wat
index e1e97ebfa..6a07e2753 100644
--- a/src/js/wasm/biditrie.wat
+++ b/src/js/wasm/biditrie.wat
@@ -101,7 +101,7 @@
         i32.const 1
         i32.add
         tee_local $needleLeft
-        ;; if ( needleLeft === needleRight ) { break; }
+        ;; if ( needleLeft === needleRight ) { return 1; }
         get_local $needleRight
         i32.eq
         if
@@ -116,7 +116,7 @@
         br $compare
     end end
     ;; }
-    ;; return true;
+    ;; return 0;
     i32.const 0
 )